APA
Agarwal D., Agarwal M. K., . (2015). Textbook of environmental sciences. New Delhi: Daya Pub. House.
Chicago
Agarwal Divya, Agarwal Manoj K, . 2015. Textbook of environmental sciences. New Delhi: Daya Pub. House.
Harvard
Agarwal D., Agarwal M. K., . (2015). Textbook of environmental sciences. New Delhi: Daya Pub. House.
MLA
Agarwal Divya, Agarwal Manoj K, . Textbook of environmental sciences. New Delhi: Daya Pub. House. 2015.