APA (7e ed.) Bronvermelding

Não informado. (1977). Energy research abstracts. Technical Information Center.

Chicago (17e ed.) Bronvermelding

Não informado. Energy Research Abstracts. Oak Ridge, Tenn: Technical Information Center, 1977.

MLA (8e ed.) Bronvermelding

Não informado. Energy Research Abstracts. Technical Information Center, 1977.

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