Sah, S.C.D. . Himalayan Geology / Textual Documents S.C.D. Sah and N.S. Mathur. - 1st ed. / - Dehradun : Wadia Institute of Himalayan Geology , C1981. - vii,448p. : ill ; 24cm . - Vol. Xl- Subjects--Index Terms: Geology Geology-Himalayan G-Geology Dewey Class. No.: 550 / Sa 19 Hi