Cita APA (7a ed.)

Safford, J. J. (2004). The Mechanics of Optimism: Mining Companies, Technology, and the Hot Spring Gold Rush, Montana Territory, 1864-1868. University Press of Colorado.

Cita Chicago Style (17a ed.)

Safford, Jeffrey J. The Mechanics of Optimism: Mining Companies, Technology, and the Hot Spring Gold Rush, Montana Territory, 1864-1868. Boulder: University Press of Colorado, 2004.

Cita MLA (8a ed.)

Safford, Jeffrey J. The Mechanics of Optimism: Mining Companies, Technology, and the Hot Spring Gold Rush, Montana Territory, 1864-1868. University Press of Colorado, 2004.