David A Wolff
David A. Wolff
David A. Wolff is assistant professor of history at Black Hills State University.
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