Cita APA

Rao, P. V. (2006). Principles of environmental science and engineering. Prentice-Hall of India.

Chicago Edition Citation

Rao, P. Venugopala. Principles of Environmental Science and Engineering. New Delhi: Prentice-Hall of India, 2006.

Cita MLA

Rao, P. Venugopala. Principles of Environmental Science and Engineering. Prentice-Hall of India, 2006.