APA (7e ed.) Bronvermelding

Não informado. (2009). Proceedings of the Annual Meeting. American Petroleum Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Proceedings of the Annual Meeting. New York: American Petroleum Institute, 2009.

MLA (8e ed.) Bronvermelding

Não informado. Proceedings of the Annual Meeting. American Petroleum Institute, 2009.

Let op: Deze citaties zijn niet altijd 100% accuraat.