Gaya APA

Klos, H. (1976). Handbook of zoo medicine diseases and treatment of wild animals in zoos, game parks, circuses and private collections (1). New York: Richard D. Irwin.

Gaya MLA

Klos, Heinz-georg. "Handbook of zoo medicine diseases and treatment of wild animals in zoos, game parks, circuses and private collections". 1 New York: Richard D. Irwin, 1976. Text.