TY  - BOOK
AU  - Aimmermann Erich W
TI  - Consevation in the production of petroleum :  A stu   
T2  - Petroleum Monograph Series.2
U1  - X9(F555).73.N5, J7 
PY  - 1957///
CY  - New Haven 
PB  - Yale University Press       
KW  - Petroleum Industry
ER  -