APA (7th ed.) Citation

Vermaak, C. F. (1979). The global status of the South African minerals economy and data summaries of its key commodities. Geolog. Soc. of South Africa.

Chicago Style (17th ed.) Citation

Vermaak, C. F. The Global Status of the South African Minerals Economy and Data Summaries of Its Key Commodities. Johannesburg: Geolog. Soc. of South Africa, 1979.

MLA (9th ed.) Citation

Vermaak, C. F. The Global Status of the South African Minerals Economy and Data Summaries of Its Key Commodities. Geolog. Soc. of South Africa, 1979.