McCaskey, H. D. (1902). Platinum and associated rare metals in placer formations information for prospectors and placer miners. Bureau of Public Print.
Citace podle Chicago (17th ed.)McCaskey, Hiram Dryer. Platinum and Associated Rare Metals in Placer Formations Information for Prospectors and Placer Miners. Manila: Bureau of Public Print, 1902.
Citace podle MLA (9th ed.)McCaskey, Hiram Dryer. Platinum and Associated Rare Metals in Placer Formations Information for Prospectors and Placer Miners. Bureau of Public Print, 1902.
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