@book{1632,
	author = {Seminar on Waste Stabilization Ponds Design and Operation (1980 : Lahore).},
	title = {Waste stabilization ponds design and operation : report [of a] Seminar, Lahore, 29 December 1979 - 5 January 1980.},
	publisher = {World Health Organization (WHO) Regional Office for the Eastern Mediterranean,},
	year = {1980.},
	series = {(WHO/EMRO Technical publication ; no. 3)},
	address = {Alexandria : }
}