Não informado. (1996). Mining in Southern Africa. Thomson Publication.
Style de citation Chicago (17e éd.)Não informado. Mining in Southern Africa. Pinegowrie, Africa do Sul: Thomson Publication, 1996.
Style de citation MLA (8e éd.)Não informado. Mining in Southern Africa. Thomson Publication, 1996.
Attention : ces citations peuvent ne pas être correctes à 100%.