Geological Survey [South Africa] 1:250 000 onshore/offshore map series Geologiese Opname [South Africa] 1:250 000 aan-/aflandige kaartreeks Hermanus Hermanus
Geological Survey (South Africa) L.E Coetzee
Pretoria, South Africa Government Printer 1990
Localização: IGC - Instituto de Geociências (MP M7-223 )(Acessar)