Παραπομπή APA

Harjindra Singh. (1999). Textbook of animal behaviour. Anmol.

Παραπομπή Chicago Style

Harjindra Singh. Textbook of Animal Behaviour. New Delhi: Anmol, 1999.

Παραπομπή MLA

Harjindra Singh. Textbook of Animal Behaviour. Anmol, 1999.