Siddique, H. N. Memoirs of the Geological Survey of India geology of the bentonite deposits of Barmer district, Rajasthan, vol. 96 H. N. Siddique and D. P. Bahl - Calcutta India Geological Survey 1965 - 96p. figs, maps, refs Subjects--Topical Terms: Bentonite Universal Decimal Class. No.: 551.1/.4:666.322(544.6) / SID