TY  - BOOK
AU  - Laufs,Rainer
ED  - Shell
ED  - World Petroleum Congress (15th. : 1997 : Beijing)
ED  - Shell
TI  - Trends in environmental management in the oil industry
U1  - 060-665.5 W938 1997 
N1  - Incluido en : Block VI-Environment and safety
ER  -