00421nam a2200157Ia 4500 170901s1989 xx 000 0 und d 552.5 V50T Verma, V. K. Aavsadi Shail-Vigyan Chandigarh Hariyana Sahitay Academy 1989 168 Pure Sciences Science of the earth and other worlds Sedimentary rocks ddc BK 5938 5938 0 0 ddc 0 0 RAU RAU 2017-10-18 Bihar Hindi Granth Academy, Patna 25.00 0 552.5 V50T 44329 2017-10-18 1994-01-11 BK