APA (7e ed.) Bronvermelding

Não informado. (2003). Platts Energy Business & Technology. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Não informado. Platts Energy Business & Technology. New York: McGraw-Hill, 2003.

MLA (8e ed.) Bronvermelding

Não informado. Platts Energy Business & Technology. McGraw-Hill, 2003.

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