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

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

Zoosystema - Muséum national d'histoire naturelle (France) (Ed. scientifiques du Muséum, 1997)

Zoosystematics and evolution (Pensoft, 2019)

Zoosystematics and evolution (Pensoft, 2020)