"De Re Metallica" by Georgius Agricola, translated by Herbert Clark Hoover and Lou Henry Hoover, 1950

"De Re Metallica" by Georgius Agricola, translated by Herbert Clark Hoover and Lou Henry Hoover, 1950, Box: 61, Folder: 11. 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/112387 Accessed December 05, 2025.