System of ophthalmology - Duke-Elder, Stewart, Sir, 1898 -1978 (Mosby, 1958)

A systematic monograph of the flatfishes (Heterosomata) - Norman, J. R. (John Roxborough), 1898 -1944 (1934)

Systematic review and cranial osteology of Petersius with redescription of P. conserialis (Teleostei: Alestidae) from the Rufiji and Ruvu rivers of Tanzania - Melo, Bruno F. (American Museum of Natural History, 2022)

A systematic revision of the neotropical catfish family Ageneiosidae (Teleostei: Ostariophysi: Siluriformes) / by Stephen Joseph Walsh - Walsh, Stephen Joseph, 1957 - (1990)

Systematics and biogeography of the genus Gambusia (Cyprinodontiformes, Poecilidae) - Rauchenberger, Mary. (American Museum of Natural History, 1989)

Systematics of Cyprinodon higuey n. sp. and Cyprinodon jamaicensis Fowler from the Greater Antilles (Teleostei, Cyprinodontiformes) - Lydeard, Charles (American Museum of Natural History, 1990)

Systematics of the genus Otothyris Myers 1927, with comments on geographic distribution (Siluriformes, Loricariidae, Hypoptopomatinae) - Garavello, Julio Cesar (American Museum of Natural History, 1998)

Systematics of the West Indian lizard genus Leiocephalus (Squamata: Iguania: Tropiduridae) - Pregill, Gregory K. (Museum of Natural History, The University of Kansas, 1992)

Systematische Phylogenie ... - Haeckel, Ernst, 1834 -1919 (G. Reimer, 1895)

Systematische phylogenie - Haeckel, Ernst, 1834 -1919 (Georg Reimer, 1895)

The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa - Moore, John Edward S. (Hurst and Blackett, limited, 1903)

Taxonomy and ontogeny of Ischnacanthus (Pisces: Acanthodii: ischnacanthiformes) from the lower Devonian (Lochkovian), Northwest Territories, Canada - Hermus, Chelsea R. (2003)

Természetrajzi Füzetek kiadja a Magyar nemzeti Muzeum - Magyar Nemzeti Múzeum. (Franklin-társulat nyomdája [etc.], 1881)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1983)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1989)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1994)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2001)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2008)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2009)

A text-book in general zoölogy - Herrick, Glenn W. (Glenn Washington), 1870 -1965 (American Book Company, 1907)

A text-book in general zoölogy - Herrick, Glenn W. (Glenn Washington), 1870 -1965 (American book company, 1922)

A text-book of agricultural zoology - Theobald, Fred. V. (Frederick Vincent), 1868 -1930 (W. Blackwood and sons, 1913)

A text-book of agricultural zoology - Theobald, Fred. V. (Frederick Vincent), 1868 -1930 (W. Blackwood and Sons, 1899)

A text-book of botany - Strasburger, Eduard, 1844 -1912 (Macmillan, 1912)

Text-book of elementary zoology, for secondary educational institutions - Galloway, Thomas Walton, 1866 -1929 (Blakiston, 1910)

Text-book of embryology - Heape, Walter, 1855 -1929 (Macmillan, 1914)

Text-book of embryology - Kerr, John Graham, 1869 -1957 (MacMillan, 1919)

Text-book of embryology - Heape, Walter, 1855 -1929 (Macmillan, 1919)

A text book of materia medica, being an account of the more important crude drugs of vegetable and animal origin, designed for students of pharmacy and medicine - Greenish, Henry G. 1855 -1933 (Churchill, 1920)

Text-book of palaeontology - Eastman, Charles Rochester, 1868 -1918 (Macmillan, 1902)

A text-book of physiological chemistry - Hammarsten, Olof, 1841 -1932 (John Wiley & Sons, 1904)

Text-book of physiological chemistry in thirty lectures - Abderhalden, Emil, 1877 -1950 (J. Wiley & sons; [etc., etc.], 1911)

Text-book of physiological chemistry in thirty lectures - Abderhalden, Emil, 1877 -1950 (J. Wiley & Sons; [etc., etc.], 1908)

A Text-book of physiological chemistry - Hammarsten, Olof, 1841 -1932 (J. Wiley, 1908)

Text-book of physiology - Sharpey-Schäfer, E. A. Sir, (Edward Albert),‏ ‎ 1850 -1935 (Pentland, 1898)

Text-book of physiology - Sharpey-Schäfer, E. A. Sir, (Edward Albert),‏ ‎ 1850 -1935 (Y. J. Pentland, 1898)

Text-book of the embryology of invertebrates - Mark, E. L. (Edward Laurens), 1847 -1946 (S. Sonnenschein and co., ltd, 1895)

Text-book of the embryology of invertebrates - Mark, E. L. (Edward Laurens), 1847 -1946 (S. Sonneschein and co., ltd, 1900)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein & co., lim, 1899)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (Swan Sonnenschein, 1892)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein, 1901)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (G. Allen & Col. Ltd, 1912)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein, 1892)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein, 1899)