TY  - BOOK
AU  - DeSorcy,G.J.
ED  - Energy Resources Conservation Board
ED  - World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest)
ED  - Energy Resources Conservation Board
TI  - Estimation methods for proved recoverable reserves of oil and gas
U1  - 060-665.5 W938 1979 
ER  -