APA

Davies P., British Petroleum, World Petroleum Congress (14th : 1994 : Stavanger) & British Petroleum.Oil supply and demand in the 1990s. : .

Chicago

Davies Peter, British Petroleum, World Petroleum Congress (14th : 1994 : Stavanger) and British Petroleum.Oil supply and demand in the 1990s. : .

Harvard

Davies P., British Petroleum, World Petroleum Congress (14th : 1994 : Stavanger) and British Petroleum.Oil supply and demand in the 1990s. : .

MLA

Davies Peter, British Petroleum, World Petroleum Congress (14th : 1994 : Stavanger) and British Petroleum.: . .