Proceedings. - Symposium on Waste Treatment by Oxidation Ponds ((1963 : : Central Public Engineering Research Institute, Nagpur)); Central Public Health Engineering Research Institute (India) (Nagpur, Central Public Health Engineering Research Institute, 1963)
Cover title.
Jointly sponsored by the Central Public Health Engineering Research Institute, Nagpur, and the Public Health Engineering Division and Nagpur Branch of the Institution of Engineers (India).
Keywords: Sewage lagoons -- Congresses