Mishra , Ravi . Geological Environment / Textual Documents Ravi Mishra. - Ist ed. / - New Delhi : Anmol Publications Pvt.Ltd. , 2002. - 343pg ; 23cm. ISBN: 81-261-1100-3 Subjects--Index Terms: Geological Environment Geology PG- Geology Dewey Class. No.: 551.1 / Mi 687 Ge