Não informado. (1947). South African Science. South African Association for the Advancement of Science.
Style de citation Chicago (17e éd.)Não informado. South African Science. Johannesburg, Africa do Sul: South African Association for the Advancement of Science, 1947.
Style de citation MLA (8e éd.)Não informado. South African Science. South African Association for the Advancement of Science, 1947.
Attention : ces citations peuvent ne pas être correctes à 100%.