TY  - BOOK
AU  - Levorsen, A I
TI  - Geology of Petroleum
SN  - 9788123909318
U1  - 553.28 
PY  - 2004///
CY  - New Delhi
PB  - Springer (India) Pvt. Ltd.
KW  - Geology
KW  - Petroleum
ER  -