Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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