Publications -- Mine Power Systems, Information Circular in Book Form, by Bureau of Mines, 1990

Publications -- Mine Power Systems, Information Circular in Book Form, by Bureau of Mines, 1990, Box: 3. Lonnie Miller, Compiler, Research Papers Regarding Coal History in Southwestern Pennsylvania, A&M 4078. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/145069 Accessed January 16, 2026.