Blum, H. (2011). The floor of heaven: A true tale of the last frontier and the Yukon gold rush. Crown Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBlum, Howard. The Floor of Heaven: A True Tale of the Last Frontier and the Yukon Gold Rush. New York: Crown Publishers, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBlum, Howard. The Floor of Heaven: A True Tale of the Last Frontier and the Yukon Gold Rush. Crown Publishers, 2011.
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