Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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