Manivasakam , N. (1984). Physico - chemical examination of water , sewage and industrial effuents. Pragati prakashan.
Dyfyniad Arddull ChicagoManivasakam , N. Physico - Chemical Examination of Water , Sewage and Industrial Effuents. Uttarpradhesh: Pragati prakashan, 1984.
Dyfyniad MLAManivasakam , N. Physico - Chemical Examination of Water , Sewage and Industrial Effuents. Pragati prakashan, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.