APA
Bohlmann D., World Petroleum Congress (13th. : 1991 : Buenos Aires), .A new process combination for deep conversion of heavy oils. : .
Chicago
Bohlmann D, World Petroleum Congress (13th. : 1991 : Buenos Aires), .A new process combination for deep conversion of heavy oils. : .
Harvard
Bohlmann D., World Petroleum Congress (13th. : 1991 : Buenos Aires), .A new process combination for deep conversion of heavy oils. : .
MLA
Bohlmann D, World Petroleum Congress (13th. : 1991 : Buenos Aires), .: . .