APA

(2003). Compendium Of Environment Statistics 2001. New Delhi: CSOMSPIGI.

Chicago

2003. Compendium Of Environment Statistics 2001. New Delhi: CSOMSPIGI.

Harvard

(2003). Compendium Of Environment Statistics 2001. New Delhi: CSOMSPIGI.

MLA

Compendium Of Environment Statistics 2001. New Delhi: CSOMSPIGI. 2003.