Não informado. (1963). Annual Research Review. Chamber of Mines of South Africa.
Style de citation Chicago (17e éd.)Não informado. Annual Research Review. Johannesburg, Africa do Sul: Chamber of Mines of South Africa, 1963.
Style de citation MLA (8e éd.)Não informado. Annual Research Review. Chamber of Mines of South Africa, 1963.
Attention : ces citations peuvent ne pas être correctes à 100%.