006750000a22001810004500 PH-MaWHO 20241108112133.0 Seminar on Waste Stabilization Ponds Design and Operation (1980 : Lahore). 644853 Waste stabilization ponds design and operation : report [of a] Seminar, Lahore, 29 December 1979 - 5 January 1980. Alexandria : World Health Organization (WHO) Regional Office for the Eastern Mediterranean, 1980. (WHO/EMRO Technical publication ; no. 3) 341p. SHZ.AD 1981 eng Sewage 314270 Industrial waste 200632 MONO 1632 1632 0 0 0 0 WPRO WPRO 2021-05-23 0 SHZ.AD 1981 01632 2024-01-24 00:00:00 2021-05-23 MONO