APA (7th ed.) Citation

Não informado. (1960). Information Circular. University of the Witwatersrand, Economic Geology Research Unit.

Chicago Style (17th ed.) Citation

Não informado. Information Circular. Johannesburg, Africa do Sul: University of the Witwatersrand, Economic Geology Research Unit, 1960.

MLA (8th ed.) Citation

Não informado. Information Circular. University of the Witwatersrand, Economic Geology Research Unit, 1960.

Warning: These citations may not always be 100% accurate.