Datta, A.K. . Introduction to Physical Geology / Textual Documents A.K. Datta. - 11th / - Ranchi : S.K. Datta , nd. - 242p. : ill ; 21cm . Index ISBN: Rs. 12.00 (Hard) Subjects--Index Terms: Geology G-Geology T/G-Geology Dewey Class. No.: 551 / D 954 M