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- [3] The Ore Deposits of South Africa. With a Chapter on Hints to Prospectors BULLETIN OF THE AMERICAN GEOGRAPHICAL SOCIETY OF NEW YORK, 1909, 41 (12): : 769 - 769
- [4] DESIGN AND OPERATION OF A MODERN ORE-HANDLING YARD AND SHIPLOADING DOCK CIM BULLETIN, 1975, 68 (763): : 82 - 86