"Geology of Coal; Examination of Coal Properties; Drifts, Slopes, and Shafts; Methods of Working" textbook by the International Library of Technology, 1907

"Geology of Coal; Examination of Coal Properties; Drifts, Slopes, and Shafts; Methods of Working" textbook by the International Library of Technology, 1907, Box: 62, Folder: 17. J. Davitt McAteer Papers regarding Mining Safety, A&M 4219. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/112430 Accessed November 23, 2024.