APA

DiBona C. J., American Petroleum Institute A., World Petroleum Congress (14th : 1994 : Stavanger) & American Petroleum Institute A.Industry initiatives to improve environmental performance. : .

Chicago

DiBona Charles J, American Petroleum Institute API, World Petroleum Congress (14th : 1994 : Stavanger) and American Petroleum Institute API.Industry initiatives to improve environmental performance. : .

Harvard

DiBona C. J., American Petroleum Institute A., World Petroleum Congress (14th : 1994 : Stavanger) and American Petroleum Institute A.Industry initiatives to improve environmental performance. : .

MLA

DiBona Charles J, American Petroleum Institute API, World Petroleum Congress (14th : 1994 : Stavanger) and American Petroleum Institute API.: . .