APA

Haas P., World Petroleum Congress (13th. : 1991 : Buenos Aires), .Equity ownership of refining facilities located in consuming countries by oil producing countries. : .

Chicago

Haas Pedro, World Petroleum Congress (13th. : 1991 : Buenos Aires), .Equity ownership of refining facilities located in consuming countries by oil producing countries. : .

Harvard

Haas P., World Petroleum Congress (13th. : 1991 : Buenos Aires), .Equity ownership of refining facilities located in consuming countries by oil producing countries. : .

MLA

Haas Pedro, World Petroleum Congress (13th. : 1991 : Buenos Aires), .: . .