Symposium on Waste Treatment by Oxidation Ponds Central Public Engineering Research Institute, Nagpur), & Central Public Health Engineering Research Institute (India). (1963). Proceedings. Central Public Health Engineering Research Institute.
Lua i Stíl Chicago (17ú heag.)Symposium on Waste Treatment by Oxidation Ponds Central Public Engineering Research Institute, Nagpur), agus Central Public Health Engineering Research Institute (India). Proceedings. Nagpur: Central Public Health Engineering Research Institute, 1963.
Lua MLA (8ú heag.)Symposium on Waste Treatment by Oxidation Ponds Central Public Engineering Research Institute, Nagpur), agus Central Public Health Engineering Research Institute (India). Proceedings. Central Public Health Engineering Research Institute, 1963.