Zoologisches Zentralblatt (W. Engelmann, 1909)

The Zoologist : a monthly journal of natural history (1870)

The Zoologist : a monthly journal of natural history (1896)

The Zoologist : a monthly journal of natural history (1916)

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

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

Zur Morphology und Ontogenie der acariden - Reuter, Enzio, 1867 -1951 (1909)

Zur Zoogeographie der landbewohnenden Wirbellosen - Stoll, O. (1897)