Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1895)

Zoologisches Centralblatt (W. Engelmann, 1895)

Zoologisches Centralblatt (W. Engelmann, 1902)

Zoologisches Zentralblatt (W. Engelmann, 1903)

Zoologisches Zentralblatt (W. Engelmann, 1905)

Zoologisches Zentralblatt (W. Engelmann, 1906)

Zoologisches Zentralblatt (W. Engelmann, 1907)

Zoologisches Zentralblatt (W. Engelmann, 1909)

Zoologisches Zentralblatt (W. Engelmann, 1910)

Zoologisches Zentralblatt (W. Engelmann, 1911)

The Zoologist : a monthly journal of natural history (1855)

The Zoologist : a monthly journal of natural history (1858)

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

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

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

Zoosystematics and evolution (Pensoft, 2014)

Zoosystematics and evolution (Pensoft, 2022)

Die Zweiflügler des Kaiserlichen Museums zu Wien - Brauer, Friedrich, 1832 -1904 (K.K. Hof-und Staatsdruckerei, 1883)

The Zygoptera, or damsel-flies, of Illinois - Garman, Philip 1891 -1972 (1917)