Zoologisches Zentralblatt (W. Engelmann, 1906)

Zoologisches Zentralblatt (W. Engelmann, 1907)

Zoologisches Zentralblatt (W. Engelmann, 1908)

Zoologisches Zentralblatt (W. Engelmann, 1909)

Zoologisches Zentralblatt (W. Engelmann, 1910)

Zoologisches Zentralblatt (W. Engelmann, 1911)

Zoologiska bidrag från Uppsala - Uppsala universitet (Almqvist & Wiksells, 1914)

The Zoologist : a monthly journal of natural history (1914)

Zoology - Elliott, Alfred M. (Alfred Marlyn), 1905 -1988 (Appleton-Century-Crofts, 1952)

Zoology - Lovell, Harvey B. (Harvey Bulfinch) 1904 - (Van Nostrand, 1955)

Zoology - Goodnight, Clarence J. (Clarence James), 1914 -1987 (C. V. Mosby Co, 1954)

Zoology, complete volume - Staig, Robert A. (Livingstone, 1900)

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, 1889)

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, 1893)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1880)

Zoology for medical students - Kerr, John Graham, 1869 -1957 (Macmillan and co., ltd, 1921)

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

Zoology of the invertebrata : a text-book for students - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (A. and C. Black, 1893)

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)