APA način citiranja

Krishna Gopal. (2003). River pollution in India and its manangement. APH.

Čikaški stil citiranja

Krishna Gopal. River Pollution in India and Its Manangement. New Delhi: APH, 2003.

MLA način citiranja

Krishna Gopal. River Pollution in India and Its Manangement. APH, 2003.