Παραπομπή APA

Rajeswar Prasad Narain S. (1992). Our birds. Govt. of India.

Παραπομπή Chicago Style

Rajeswar Prasad Narain S. Our Birds. New Delhi: Govt. of India, 1992.

Παραπομπή MLA

Rajeswar Prasad Narain S. Our Birds. Govt. of India, 1992.