na INLIS000000000012402 Ind 0010-1118012402 Using remote sensing techniques to evaluate lining efficant of water cources SAKTHIVADIVEL, R. R. Sakthivadivel; Upali A. Amarashinghe and S. Thiruvengadachori Colombo IWMI 2001 29 p. : ill. ; 29 cm.-- 29 p. : ill. ; 29 cm.-- ISBN 92-900-416-x Sr. 636.81/.84 WATER MANAGEMENT IRRIGATION REMOTE SENSING 363/MS/2001-mfn14192 363/MS/2001-mfn35221