Kotpal, R. L. (1999). The Birds: A Text Book for University Students (4th ed.). Rastogi Publications.
Style de citation Chicago (17e éd.)Kotpal, R. L. The Birds: A Text Book for University Students. 4th ed. Meerut, India: Rastogi Publications, 1999.
Style de citation MLA (9e éd.)Kotpal, R. L. The Birds: A Text Book for University Students. 4th ed. Rastogi Publications, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.