Zoölogy descriptive and practical - Colton, Buel P. (Buel Preston), 1852 -1906 (Copp, Clark, 1886)

Zoology, descriptive and practical - Colton, Buel P. (Buel Preston), 1852 -1906 (D. C. Heath & Co, 1907)

Zoology, descriptive and practical - Colton, Buel P. (Buel Preston), 1852 -1906 (D.C. Heath & Co., Publishers, 1903)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1895)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1889)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1886)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and company, 1893)

Zoology for students : a handbook - Royal College of Physicians of Edinburgh. (Daldy, Isbister, 1875)

Zoology : for students and general readers - Packard, A. S. (Alpheus Spring), 1839 -1905 (Henry Holt, 1879)

Zoology of Colorado - Cockerell, Theodore D. A. (Theodore Dru Alison), 1866 -1948 (University of Colorado, 1927)

Zoology of New York; or, The New York Fauna; comprising detailed descriptions of all the animals hitherto observed within the state of New York, with brief notices of those occasionally found near its borders, and accompanied by appropriate illustrations - De Kay, James E. (James Ellsworth), 1792 -1851 (W. & A. White & J. Visscher, 1842)

Zoology, a textbook for college and university students - Chidester, Floyd Earle, 1884 -1947 (D. Van Nostrand, 1932)

Zöology; a textbook for colleges and universities - Cockerell, Theodore D. A. (Theodore Dru Alison), 1866 -1948 (World book company, 1920)

Zoosystematics and evolution (Pensoft, 2016)

Zur Fauna der gehäusetragenden Landschnecken des Kantons Tessin - Eder, Leo, 1866 - (Buchdruckerei Werner-Riehm, 1914)

Zur Gastropodenfauna von Basel und Umgebung - Bollinger, Gottfried, 1883 -1978 (Werner-Riehm, 1909)

Zur Kenntniss des Lebens in den stehenden Kleingewässern auf den Skäreninseln - Levander, K. M. (Kaarlo Mainio) ([publisher not identified], 1900)