Gupta, A. B. Das Geology A. B. Das Gupta and A. K. Biswas - Bangalore Geological Society of India 2000 - xv+169p. annex; col. plates; figs; glossary; index; refs; tables - Geological Society: Text Book Series, No. 12 . ISBN: 81-85867-44-5 Subjects--Topical Terms: Assam,geologyGeology-indiaGeotectonicsMineral ResourcesRegional GeologyStratigraphy Universal Decimal Class. No.: 55(541.1) / DAS