Chamber of Mines of South Africa. Research Organisation. (1975). Research and development annual report. Chamber of Mines of South Africa.
Chicago-referens (17:e uppl.)Chamber of Mines of South Africa. Research Organisation. Research and Development Annual Report. [Johannesburg]: Chamber of Mines of South Africa, 1975.
MLA-referens (8:e uppl.)Chamber of Mines of South Africa. Research Organisation. Research and Development Annual Report. Chamber of Mines of South Africa, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.