APA
Saxena O. P., . (1978). Modern text book of amphibia. New Delhi: S.Chand & Company Pvt Ltd.
Chicago
Saxena O P, . 1978. Modern text book of amphibia. New Delhi: S.Chand & Company Pvt Ltd.
Harvard
Saxena O. P., . (1978). Modern text book of amphibia. New Delhi: S.Chand & Company Pvt Ltd.
MLA
Saxena O P, . Modern text book of amphibia. New Delhi: S.Chand & Company Pvt Ltd. 1978.