TY  - BOOK
AU  - Levorsen, A.I. .
TI  - Geology of Petroleum
U1  - 550 
PY  - 1985///
CY  - Delhi
PB  - CBS Publishers & Distributors
KW  - Geology
KW  - Petroleum
KW  - Petrology
KW  - PG-Geology
N1  - Index
ER  -