Rao, N. M. Waste Water Treatment: Rational Methods of Design and Industrial Practices (2nd.). Rational Methods of Design and Inddusrial Practices.
Dyfyniad Arddull ChicagoRao, Narayana. M. Waste Water Treatment: Rational Methods of Design and Industrial Practices. 2nd. Rational Methods of Design and Inddusrial Practices.
Dyfyniad MLARao, Narayana. M. Waste Water Treatment: Rational Methods of Design and Industrial Practices. 2nd. Rational Methods of Design and Inddusrial Practices.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.