Não informado. (2022). Memoirs. Department of Mineral and Energy Affairs.
Chicago-Zitierstil (17. Ausg.)Não informado. Memoirs. Pretoria, Africa do Sul: Department of Mineral and Energy Affairs, 2022.
MLA-Zitierstil (8. Ausg.)Não informado. Memoirs. Department of Mineral and Energy Affairs, 2022.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.