APA Style

Chauhan, A, K., Varma, A. (2006). Microbes: Health and Environment . New Delhi: I. K. International Publishing House Pvt. Ltd..

MLA Style

Chauhan, Ashok, K.., Varma, Ajit. "Microbes: Health and Environment". New Delhi: I. K. International Publishing House Pvt. Ltd., 2006. Text.