Não informado. (2009). Proceedings of the Annual Meeting. American Petroleum Institute.
Style de citation Chicago (17e éd.)Não informado. Proceedings of the Annual Meeting. New York: American Petroleum Institute, 2009.
Style de citation MLA (8e éd.)Não informado. Proceedings of the Annual Meeting. American Petroleum Institute, 2009.
Attention : ces citations peuvent ne pas être correctes à 100%.