Geological Survey (South Africa) & Aero Service Corporation. (1973). [South Africa 1:250,000 aeromagnetic and airborne radiometric surveys]: [South Africa 1:250 000 lugnagnetiese en lugradiometriese opname]. Government Printer.
Chicago Style (17th ed.) CitationGeological Survey (South Africa) and Aero Service Corporation. [South Africa 1:250,000 Aeromagnetic and Airborne Radiometric Surveys]: [South Africa 1:250 000 Lugnagnetiese En Lugradiometriese Opname]. Pretoria: Government Printer, 1973.
MLA (9th ed.) CitationGeological Survey (South Africa) and Aero Service Corporation. [South Africa 1:250,000 Aeromagnetic and Airborne Radiometric Surveys]: [South Africa 1:250 000 Lugnagnetiese En Lugradiometriese Opname]. Government Printer, 1973.
Warning: These citations may not always be 100% accurate.