Dhoolappa, G. Report on systematic hydrogeological survey in Longnok valley of Mokokchung district, Nagaland / G. Dhoolappa - Gauhati : C.G.W.D., Govt. of India, 1979 - [iv], 13, 4 p. : ill., maps(fold) ; 33 cm. Bibliography : p. 13 Subjects--Topical Terms: Ground water--Mokokchung, NagalandHydrogeological surveys Subjects--Geographic Terms: Mokokchung, Nagaland--Watersupply Dewey Class. No.: 551.49 (54111)