[South Africa 1:250,000 aeromagnetic and airborne radiometric surveys] [South Africa 1:250 000 lugnagnetiese en lugradiometriese opname] Pretoria Pienaars River-Groblersdal area Gebied Pretoria Pienaars River-Groblersdal
Geological Survey (South Africa) Transronic pty. Ltd; Compagnie générale de géophysique (France)
Pretoria Government Printer 1973
Localização: IGC - Instituto de Geociências (MP M5-101 )(Acessar)