Não informado. (2022). Memoirs. Department of Mineral and Energy Affairs.
Chicagoスタイル(17版)引用形式Não informado. Memoirs. Pretoria, Africa do Sul: Department of Mineral and Energy Affairs, 2022.
MLA(8版)引用形式Não informado. Memoirs. Department of Mineral and Energy Affairs, 2022.
警告: この引用は必ずしも正確ではありません.