David A. Wolff is assistant professor of history at Black Hills State University.
David A. Wolff
Industrializing the Rockies
Growth, Competition, and Turmoil in the Coalfields of Colorado and Wyoming, 1868-1914
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David A. Wolff is assistant professor of history at Black Hills State University.
Growth, Competition, and Turmoil in the Coalfields of Colorado and Wyoming, 1868-1914
