Cita APA (7a ed.)

Smith, D. A. (2009). The Trail of Gold and Silver: Mining in Colorado, 1859-2009. University Press of Colorado.

Cita Chicago Style (17a ed.)

Smith, Duane A. The Trail of Gold and Silver: Mining in Colorado, 1859-2009. Boulder, Colo.: University Press of Colorado, 2009.

Cita MLA (8a ed.)

Smith, Duane A. The Trail of Gold and Silver: Mining in Colorado, 1859-2009. University Press of Colorado, 2009.