Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.