Western birds - California Field Ornithologists. (California Field Ornithologists, 1998)

Western birds - California Field Ornithologists. (California Field Ornithologists, 1999)

Western birds - Myers, Harriet Williams. (The Macmillan company, 1922)

Wild animals of Glacier National Park. The mammals, with notes on physiography and life zones; The birds - Bailey, Vernon, 1864 -1942 (Govt. print. off, 1918)

Wild life of the world : a descriptive survey of the geographical distribution of animals - Lydekker, Richard, 1849 -1915 (F. Warne and co, 1916)

The Willughby Society [publications] - Scopoli, Giovanni Antonio, 1723 -1788 (The Society, 1882)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1903)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1916)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1925)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1926)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1935)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1957)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1987)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1996)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1997)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 1999)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2002)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2004)

The Wilson bulletin - Agassiz Association. Wilson Ornithological Chapter. (Wilson Ornithological Society, 2005)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2006)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2007)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2009)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2010)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2011)

The Wilson journal of ornithology - Wilson Ornithological Society (Wilson Ornithological Society, 2012)

Wilson's American ornithology with additions including the birds described by Audubon, Bonaparte, Nuttall, & Richardson - Wilson, Alexander, 1766 -1813 (C.L. Cornish, 1839)

Wilson's American ornithology : with notes by Jardine ; to which is added a synopsis of American birds, including those described by Bonaparte, Audubon, Nuttall, and Richardson - Brewer, T. M. (Thomas Mayo), 1814 -1880 (Otis, Broaders, and Co, 1840)

Wilson's American ornithology, with notes by Jardine. To which is added a synopsis of American birds, including those described by Bonaparte, Audubon, Nuttall, and Richardson, by T.M. Brewer - Brewer, T. M. (Thomas Mayo), 1814 -1880 (T.L. Magagnos, 1854)

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Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1965)

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Works, containing his physiology, nosology, and the first lines of the practice of physic; with numerous extracts from his manuscript papers, and from his treatise of the materia medica - Cullen, William, 1710 -1790 (Blackwood, 1827)

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Zeitschrift für die gesammte Ornithologie - Madarász, Gyula, 1858 -1931 (Franklin-Verein, 1885)

Zeitschrift für die gesammte Ornithologie - Madarász, Gyula, 1858 -1931 (Franklin-Verein, 1886)

Zeitschrift für die gesammte Ornithologie - Madarász, Gyula, 1858 -1931 (Franklin-Verein, 1887)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1864)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1876)

Zeitschrift fur Oologie (H. Hocke, 1896)

Zeitschrift fur Oologie (H. Hocke, 1899)

Zeitschrift fur Oologie (H. Hocke, 1900)

Zeitschrift fur Oologie (H. Hocke, 1901)

Zeitschrift fur Oologie (H. Hocke, 1902)

Zeitschrift fur Oologie (H. Hocke, 1903)

Zeitschrift fur Oologie (H. Hocke, 1904)

Zeitschrift fur Oologie und Ornithologie (H. Hocke, 1905)

Zeitschrift fur Oologie und Ornithologie (H. Hocke, 1907)

Zeitschrift für wissenschaftliche Zoologie - Kölliker, Albert, 1817 -1905 (Wilhelm Engelmann, 1879)

Zeitschrift für wissenschaftliche Zoologie - Kölliker, Albert, 1817 -1905 (Wilhelm Engelmann, 1900)

Zeitschrift für wissenschaftliche Zoologie - Kölliker, Albert, 1817 -1905 (Wilhelm Engelmann, 1915)

Zentralblatt für Zoologie, allgemeine und experimentelle Biologie (B.G. Teubner, 1913)

Zoogeography - Hubbs, Carl L. (Carl Leavitt), 1894 -1979 (1958)

Zoographia Rosso-Asiatica : sistens omnium animalium in extenso Imperio Rossico, et adjacentibus maribus observatorum recensionem, domicilia, mores et descriptiones, anatomen atque icones plurimorum - Pallas, Peter Simon, 1741 -1811 (In officina Caes. Acadamiae Scientiarum Impress. MDCCCXI, 1831)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1884)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1899)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1901)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1902)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1906)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1908)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1910)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1912)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1914)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1916)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1920)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1921)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1922)

Zoological series - Geological; Natural History Survey of Minnesota. (Geological and Natural History Survey, 1892)

Zoologische Annalen (A. Stuber's Verlag (C. Kabitzsch, 1904)

Zoologische Annalen (A. Stuber's Verlag (C. Kabitzsch, 1906)

Zoologische Annalen (A. Stuber's Verlag (C. Kabitzsch, 1908)

Zoologische Annalen (A. Stuber's Verlag (C. Kabitzsch, 1914)

Zoologische Beyträge zur XIII. Ausgabe des Linnéischen Natursystems - Linné, Carl von, 1707 -1778 (In der Weidmannischen Buchhandlung, 1794)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1864)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1865)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1867)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1872)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1901)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1903)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1907)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1918)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1920)

Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere (G. Fischer, 1902)

Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere (G. Fischer, 1907)

Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere (G. Fischer, 1917)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1886)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1888)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1878)