TY  - BOOK
AU  - Rao,P.C.Sanjeeva
AU  - Rao, Digumarti Bhaskara.
TI  - A text book of geology
SN  - 8171413137
U1  - 550 
PY  - 2001///
CY  - New Delhi
PB  - Discovery Publishing House , 
KW  - Geology
ER  -