Obbes, A. M. (2000). The structure, stratigraphy and sedimentology of the Black Reef-Malmani-Rooihoogte succession of the Transvaal Supergroup, Southwest of Pretoria. Council for Geoscience, South Africa.
Chicago-Zitierstil (17. Ausg.)Obbes, A. M. The Structure, Stratigraphy and Sedimentology of the Black Reef-Malmani-Rooihoogte Succession of the Transvaal Supergroup, Southwest of Pretoria. Pretoria: Council for Geoscience, South Africa, 2000.
MLA-Zitierstil (9. Ausg.)Obbes, A. M. The Structure, Stratigraphy and Sedimentology of the Black Reef-Malmani-Rooihoogte Succession of the Transvaal Supergroup, Southwest of Pretoria. Council for Geoscience, South Africa, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.