APA استشهاد

Ahluwalia, V. K., & Sunita, M. (2009). Environmental science. Ane Books.

استشهاد بنمط شيكاغو

Ahluwalia, V K., و Malhotra Sunita. Environmental Science. New Delhi: Ane Books, 2009.

MLA استشهاد

Ahluwalia, V K., و Malhotra Sunita. Environmental Science. Ane Books, 2009.