Rao, P. V. (2006). Principles of environmental science and engineering. Prentice-Hall of India.
Citación estilo ChicagoRao, P. Venugopala. Principles of Environmental Science and Engineering. New Delhi: Prentice-Hall of India, 2006.
Cita MLARao, P. Venugopala. Principles of Environmental Science and Engineering. Prentice-Hall of India, 2006.
Precaución: Estas citas no son 100% exactas.