TY  - BOOK
AU  - Tedeschi,Mauricio
ED  - Petróleos de Venezuela
ED  - World Petroleum Congress (13th. : 1991 : Buenos Aires)
ED  - Petróleos de Venezuela
TI  - Reserves and production of heavy crude oil and natural bitumen
U1  - 060-665.5 W938 1991 
ER  -