Meenakshi, P. (2012). Elements of environmental science and engineering (2nd ed.). PHI Learning.
Dyfyniad Arddull ChicagoMeenakshi, P. Elements of Environmental Science and Engineering. 2nd ed. New Delhi: PHI Learning, 2012.
Dyfyniad MLAMeenakshi, P. Elements of Environmental Science and Engineering. 2nd ed. PHI Learning, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.