Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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