nam a22 7a 4500 51407 51407 20190208112833.0 190208b xxu||||| |||| 00| 0 eng d 8172250177 Rs.65.00 MAIN eng 552.001 TRY Tyrrell, G. W. The principles of petrology : an introduction to the science of rocks / 1st ed. New Delhi : BI Publication, c1998 Rep. 349 p; 22 cm. Bibliographical foot-notes. Petrology BK 0 0 ddc 0 552_001000000000000_TRY 0 NFIC 62856 MAIN MAIN GEN 2018-05-03 Geology-5 Shelf 3 1 552.001 TRY UGC18850 2022-06-10 2021-02-06 1 2018-05-03 BK