APA (7th ed.) Citation

Sharma, P. D. (2013). Ecology and environment (11th rev. ed.). Rastogi Publications.

Chicago Style (17th ed.) Citation

Sharma, P. D. Ecology and Environment. 11th rev. ed. Meerut: Rastogi Publications, 2013.

MLA (9th ed.) Citation

Sharma, P. D. Ecology and Environment. 11th rev. ed. Rastogi Publications, 2013.