Não informado. (1947). South African Science. South African Association for the Advancement of Science.
Chicagoスタイル(17版)引用形式Não informado. South African Science. Johannesburg, Africa do Sul: South African Association for the Advancement of Science, 1947.
MLA(8版)引用形式Não informado. South African Science. South African Association for the Advancement of Science, 1947.
警告: この引用は必ずしも正確ではありません.