Kotpal, R. L. (2000). Modern Text Book of Zoology: Vertebrates. Rastogi Publications.
Cita Chicago (17th ed.)Kotpal, R. L. Modern Text Book of Zoology: Vertebrates. Meerut: Rastogi Publications, 2000.
Cita MLA (9th ed.)Kotpal, R. L. Modern Text Book of Zoology: Vertebrates. Rastogi Publications, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.