APA (7th ed.) Zitazioa

Rao,p.Venugopala. (2002). Textbook of environmental engineering. PHI Learning Private Limited.

Chicago Style (17th ed.) Zitazioa

Rao,p.Venugopala. Textbook of Environmental Engineering. New Delhi: PHI Learning Private Limited, 2002.

MLA (9th ed.) Zitazioa

Rao,p.Venugopala. Textbook of Environmental Engineering. PHI Learning Private Limited, 2002.