Pirow, H. (1935). Gold mining in South Africa: An address. Witwatersrand University Press.
Chicago-viite (17. p.)Pirow, Hans. Gold Mining in South Africa: An Address. [Johannesburg]: Witwatersrand University Press, 1935.
MLA-viite (8. p.)Pirow, Hans. Gold Mining in South Africa: An Address. Witwatersrand University Press, 1935.
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