APA (7e ed.) Bronvermelding

Não informado. (1931). Metallurgical Abstracts. Institute of Metals.

Chicago (17e ed.) Bronvermelding

Não informado. Metallurgical Abstracts. London: Institute of Metals, 1931.

MLA (8e ed.) Bronvermelding

Não informado. Metallurgical Abstracts. Institute of Metals, 1931.

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