APA ציטוט

Beer, G. D. (1960). Vertebrate zoology. Sidgwick and jackson ltd.

Chicago Edition Citation

Beer, Gavin De. Vertebrate Zoology. London: Sidgwick and jackson ltd, 1960.

ציטוט MLA

Beer, Gavin De. Vertebrate Zoology. Sidgwick and jackson ltd, 1960.