Παραπομπή APA

Kotpal, R. L. (2000). Modern textbook of zoology: Vertebrates (2nd ed.). Rastogi.

Παραπομπή Chicago Style

Kotpal, R L. Modern Textbook of Zoology: Vertebrates. 2nd ed. Meerut: Rastogi, 2000.

Παραπομπή MLA

Kotpal, R L. Modern Textbook of Zoology: Vertebrates. 2nd ed. Rastogi, 2000.