Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.