(1992). Catalogue of Publications of the Geological Survey of the Republic of South Africa including publications on South West Africa / Namibia up to 1980: Katalogus van Publikasies van die Geologiese Opname van die Republiek van Suid-Afrika. Geological Survey.
Cita Chicago Style (17a ed.)Catalogue of Publications of the Geological Survey of the Republic of South Africa Including Publications on South West Africa / Namibia Up to 1980: Katalogus Van Publikasies Van Die Geologiese Opname Van Die Republiek Van Suid-Afrika. Pretoria: Geological Survey, 1992.
Cita MLA (9a ed.)Catalogue of Publications of the Geological Survey of the Republic of South Africa Including Publications on South West Africa / Namibia Up to 1980: Katalogus Van Publikasies Van Die Geologiese Opname Van Die Republiek Van Suid-Afrika. Geological Survey, 1992.