APA (7e ed.) Bronvermelding

Não informado. (2004). Fossil energy update. Energy Research and Development Administration, Technical Information Center.

Chicago (17e ed.) Bronvermelding

Não informado. Fossil Energy Update. Oak Ridge, Tenn: Energy Research and Development Administration, Technical Information Center, 2004.

MLA (8e ed.) Bronvermelding

Não informado. Fossil Energy Update. Energy Research and Development Administration, Technical Information Center, 2004.

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