APA Edition Citation

Arun Kumar, Verma, V. K., Kushwaha, R. S., & Thakur, B. (2009). Earth system sciences. Concept Pub. Co..

Chicago Edition Citation

Arun Kumar, V. K. Verma, R. S. Kushwaha, and Baleshwar Thakur. Earth System Sciences. New Delhi: Concept Pub. Co., 2009.

MLA Edition Citation

Arun Kumar, et al. Earth System Sciences. Concept Pub. Co., 2009.