APA

Meyer R. F., Centre for Heavy Crude and Tar Sands, World Petroleum Congress (15th. : 1997 : Beijing) & Centre for Heavy Crude and Tar Sands.World heavy crude oil resources. : .

Chicago

Meyer Richard F, Centre for Heavy Crude and Tar Sands, World Petroleum Congress (15th. : 1997 : Beijing) and Centre for Heavy Crude and Tar Sands.World heavy crude oil resources. : .

Harvard

Meyer R. F., Centre for Heavy Crude and Tar Sands, World Petroleum Congress (15th. : 1997 : Beijing) and Centre for Heavy Crude and Tar Sands.World heavy crude oil resources. : .

MLA

Meyer Richard F, Centre for Heavy Crude and Tar Sands, World Petroleum Congress (15th. : 1997 : Beijing) and Centre for Heavy Crude and Tar Sands.: . .