TY - BOOK AU - W.F. Vlotman, TI - Proceedings 5th. International Drainage Workshop - Subsurface Drainage on Problematic Irrigated Soils: Sustainability & Cost Effectiveness PY - 1992/// CY - Lahore, Pakistan PB - Director-General of International Waterlogging & Salinity Research Institute (IWASRI) c/o General Manager (Planning) WAPDA, 228-Wapda House N1 - The Workshop was held in Lahore, Pakistan from th 8th. to 15th. February, 1992; Volume 1 bilingual proceedings - English & French ER -