W.F. Vlotman, <br/><br/>
Proceedings 5th. International Drainage Workshop - Subsurface Drainage on Problematic Irrigated Soils: Sustainability & Cost Effectiveness 

 - Lahore, Pakistan:  Director-General of International Waterlogging & Salinity Research Institute (IWASRI) c/o General Manager (Planning) WAPDA, 228-Wapda House,  1992 
 - 311 pages  drawings, tables, charts;  21 cm 
<br/><br/> The Workshop was held in Lahore, Pakistan from th 8th. to 15th. February, 1992 
<br/><br/>Volume 1 bilingual proceedings - English & French 
<br/><br/><br/>In English & French