Não informado. (1962). Annals of the Geological Survey. Republic of South Africa, Department of Mines.
Style de citation Chicago (17e éd.)Não informado. Annals of the Geological Survey. Pretoria, Africa do Sul: Republic of South Africa, Department of Mines, 1962.
Style de citation MLA (8e éd.)Não informado. Annals of the Geological Survey. Republic of South Africa, Department of Mines, 1962.
Attention : ces citations peuvent ne pas être correctes à 100%.