APA (7e ed.) Bronvermelding

Não informado. (1974). Engineering index energy abstracts. Engineering Index.

Chicago (17e ed.) Bronvermelding

Não informado. Engineering Index Energy Abstracts. New York: Engineering Index, 1974.

MLA (8e ed.) Bronvermelding

Não informado. Engineering Index Energy Abstracts. Engineering Index, 1974.

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