APA (7e ed.) Bronvermelding

Não informado. (1981). Basic Petroleum Data Book. American Petroleum Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Basic Petroleum Data Book. Washington: American Petroleum Institute, 1981.

MLA (8e ed.) Bronvermelding

Não informado. Basic Petroleum Data Book. American Petroleum Institute, 1981.

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