TY  - BOOK
AU  - Bull,S.
AU  - Marmin,A.
AU  - Marmin,A.
ED  - Shell
ED  - World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest)
ED  - Shell
TI  - Lube oil manufacture by severe hydrotreatment
U1  - 060-665.5 W938 1979 
ER  -