Gopalakrishnaiah, N., Dr. A Report on systematic hydrogeological investigations in parts of Sibsagar district, Assam : progress report for the session 1975-76 / by N. Gopalakrishnaiah - Gauhati : Central Ground Water Board, India, 1977 - Various pagings, 5 plates ; 33 cm. Index : p. 14 Subjects--Topical Terms: Ground water--Sibsagar, AssamHydrogeological surveys Subjects--Geographic Terms: Sibsagar, Assam--Watersupply Dewey Class. No.: 551.49 (5411)