The Quarterly journal of the Geological Society of London - Geological Society of America. (1889)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1890)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1891)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1897)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1896)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1914)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1919)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1923)

Ranellidae and Personidae : a classification of recent species - Piech, Betty Jean. (Delaware Museum of Natural History, 1995)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2005)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2006)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2007)

Raridades da natureza, e da arte : divididas pelos quatro elementos - Luiz Ameno, Francisco, (Francisco Luiz Ameno, 1759)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1829)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1830)

The reason why. Natural history - Philp, Robert Kemp, 1819 -1882 (Houlston and Wright, 1860)

The reason why, natural history giving reasons for hundreds of interesting facts in connection with zoology : and throwing light upon the peculiar habits and instincts of the various orders of the animal kingdom - Making of America Project. (Dick & Fitzgerald, 1870)

Recherches sur la faune littorale de Belgique : crustacés - Beneden, P.-J. van (Pierre Joseph), 1809 -1894 (Hayes, impr. de l'Académie, 1861)

Record of American entomology for the year 1868 ... - Packard, A. S. (Alpheus Spring), 1839 -1905 (Naturalist's Book Agency, 1869)

The Record of zoological literature (J. van Voorst, 1864)

The Record of zoological literature (J. van Voorst, 1865)

The Record of zoological literature (J. van Voorst, 1866)

The Record of zoological literature (J. van Voorst, 1867)

The Record of zoological literature (J. van Voorst, 1868)

The Record of zoological literature (J. van Voorst, 1869)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 1908)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 1913)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 1923)

Records of the geological survey of India (1870)

Records of the geological survey of India (1877)

Records of the geological survey of India (1878)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1912)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1913)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1914)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1915)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1917)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1918)

Records of the Indian Museum - Indian Museum. (Pub. by order of the trustees of the Indian Museum, 1921)

Records of the Queen Victoria Museum Launceston - Queen Victoria Museum (Launceston, Tas.) (The Museum, 1971)

Records of the Queen Victoria Museum Launceston - Queen Victoria Museum (Launceston, Tas.) (The Museum, 2003)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1934)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1967)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1976)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1974)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1918)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1978)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1983)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1984)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1985)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1988)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1991)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1993)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 2009)

Recovery plan for U.S. Pacific populations of the East Pacific green turtle (Chelonia mydas) - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1998)

Recovery plan for U.S. Pacific populations of the green turtle (Chelonia mydas) - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1998)

Recovery plan for U.S. Pacific populations of the hawksbill turtle (Eretmochelys imbricata) - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1998)

Recovery plan for U.S. Pacific populations of the leatherback turtle (Dermochelys coriacea) - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanographic and Atmospheric Administration, National Marine Fisheries Service, 1998)

Recovery plan for U.S. Pacific populations of the loggerhead turtle (Caretta caretta) - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1998)

Recovery plan for U.S. Pacific populations of the olive ridley turtle (Lepidochelys olivacea) - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1998)

Le règne animal distribué d'après son organisation : pour servir de base a l'histoire naturelle des animaux et d'introduction a l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1817)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Louis Hauman et Comp, 1836)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Audouin, Jean Victor, 1797 -1841 (Fortin, Masson et cie, 1836)

Reise in Ostafrika in den Jahren 1903-1905 : mit Mitteln der Hermann und Elise geb. Heckmann Wentzel-Stiftung : Wissenschaftliche Ergebnisse - Voeltzkow, Alfred, 1860 -1946 (E. Schweizerbartsche Verlagsbuchhandlung, 1913)

Reise in Ostafrika in den Jahren 1903-1905 : mit Mitteln der Hermann und Elise geb. Heckmann Wentzel-Stiftung : Wissenschaftliche Ergebnisse - Voeltzkow, Alfred, 1860 -1946 (E. Schweizerbartsche Verlagsbuchhandlung, 1906)

Reise in Ostafrika in den Jahren 1903-1905 : mit Mitteln der Hermann und Elise geb. Heckmann Wentzel-Stiftung : Wissenschaftliche Ergebnisse - Voeltzkow, Alfred, 1860 -1946 (E. Schweizerbartsche Verlagsbuchhandlung, 1914)

Reise in Ostafrika in den Jahren 1903-1905 : mit Mitteln der Hermann und Elise geb. Heckmann Wentzel-Stiftung : Wissenschaftliche Ergebnisse - Voeltzkow, Alfred, 1860 -1946 (E. Schweizerbartsche Verlagsbuchhandlung, 1915)

Reisebilder aus Liberia : Resultate geographischer, naturwissenschaftlicher und ethnographischer untersuchungen während der jahre 1879-1882 und 1886-1887 - Büttikofer, Johann, 1850 -1927 (E. J. Brill, 1890)

Reisen in den Vereinigten Staaten, Canada und Mexico - Müller, J. W. von Baron (Johann Wilhelm) 1824 -1866 (F.A. Brockhaus, 1865)

Reisen und Forschungen im Amur-Lande in den Jahren 1854-1856 - Schrenck, Leopold von, 1826 -1894 (Commissionäre der K. Akademie der Wissenschaften, 1859)

Relationships of chrysemyd turtles of North America (Testudines, Emydidae) - Ward, Joseph P. (Texas Tech Press, 1984)

Rendiconti - Reale Accademia dei Lincei (l'Accademia, 1887)

Rendiconti - Reale Accademia dei Lincei (l'Accademia, 1889)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1892)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1856)