APA (7e ed.) Bronvermelding

Não informado. (1956). Journal of the Southern African Institute of Mining and Metallurgy. South African Institute of Mining and Metallurgy.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of the Southern African Institute of Mining and Metallurgy. Johannesburg, Africa do Sul: South African Institute of Mining and Metallurgy, 1956.

MLA (8e ed.) Bronvermelding

Não informado. Journal of the Southern African Institute of Mining and Metallurgy. South African Institute of Mining and Metallurgy, 1956.

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