APA-ийн эшлэл(7 дахь хэвлэлт)

Curtis, K. A. (2013). Gambling on ore: The nature of metal mining in the United States, 1860-1910. University Press of Colorado.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Curtis, Kent A. Gambling on Ore: The Nature of Metal Mining in the United States, 1860-1910. Boulder: University Press of Colorado, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Curtis, Kent A. Gambling on Ore: The Nature of Metal Mining in the United States, 1860-1910. University Press of Colorado, 2013.