TY  - BOOK
AU  - Levorsen,A.I.
TI  - Geology of petroleum
SN  - 8123909314
U1  - 553.282 22
PY  - 1985///
CY  - New delhi
PB  - CBS pub.
KW  - Petroleum
KW  - Geology
N1  - Includes bibliography and Index
ER  -