TY  - BOOK
AU  - Ahlbrandt,Thomas S.
AU  - Klett,T.R.
AU  - Klett,T.R.
ED  - United States Geological Survey
ED  - World Petroleum Congress (15th. : 1997 : Beijing)
ED  - United States Geological Survey
TI  - Estimates of undiscoveres oil and gas in petroleum systems of the world: North Afirca and Middle East examples
U1  - 060-665.5 W938 1997 
N1  - Incluído en : Block 1- Exploration
ER  -