Não informado. (2001). Special Publication. Geological Society of South Africa.
Style de citation Chicago (17e éd.)Não informado. Special Publication. Johannesburg, Africa do Sul: Geological Society of South Africa, 2001.
Style de citation MLA (8e éd.)Não informado. Special Publication. Geological Society of South Africa, 2001.
Attention : ces citations peuvent ne pas être correctes à 100%.