TY  - BOOK
AU  - Parra,A.A.
ED  - Petróleos de Venezuela, PDVSA
ED  - World Petroleum Congress (11th. : 1983 : London)
ED  - Petróleos de Venezuela, PDVSA
TI  - A view of the world petroleum supply and demand outlook
U1  - 060-665.5 W938 1983 
ER  -