[South Africa 1:250,000 aeromagnetic and airborne radiometric surveys] [South Africa 1:250 000 lugnagnetiese en lugradiometriese opname] West Coast, Namaqualand Weskus Namakwaland
Geological Survey (South Africa) Aero Service Corporation
Pretoria Government Printer 1973
Localização: IGC - Instituto de Geociências (MP M4-132 )(Acessar)