The mines handbook: Succeeding the Copper handbook. Describing the mining companies of the two American continents. Mines Information Bureau.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Mines Handbook: Succeeding the Copper Handbook. Describing the Mining Companies of the Two American Continents. New York: Mines Information Bureau.
एमएलए (8वां संस्करण) प्रशस्ति पत्रThe Mines Handbook: Succeeding the Copper Handbook. Describing the Mining Companies of the Two American Continents. Mines Information Bureau.
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