APA (7e ed.) Bronvermelding

Não informado. (1963). Annual Research Review. Chamber of Mines of South Africa.

Chicago (17e ed.) Bronvermelding

Não informado. Annual Research Review. Johannesburg, Africa do Sul: Chamber of Mines of South Africa, 1963.

MLA (8e ed.) Bronvermelding

Não informado. Annual Research Review. Chamber of Mines of South Africa, 1963.

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