Vaid, D. K. Progress report on the systematic hydrogeological survey in part of Cochar district, Assam (field season 1974-1975) : / D. K. Vaid - Guwahati: Central Ground Water Board, 1977 - Various pagings in 1 v. ; 33 cm Subjects--Topical Terms: Hydrogeology--India--Assam--CocharWater- Supply--India--Assam--CocharGroundwater--India--Assam--Cochar Dewey Class. No.: 551.49