American Mining Congress
Dividends, industrial peace and increased production yesterday and tomorrow
Mining Congress Journal; 8 no.2
Mining Congress Journal; 8 no.8
Report of proceedings of the American Mining Congress
Report of the Proceedings ..
The Mining Congress Journal, Vol. 8: May, 1922 (Classic Reprint)
The World's greatest zinc and lead district as seen through the camera
Coal conservation
Handbook--standard and approved American coal mining methods--practice--equipment
Joseph Austin Holmes, 1859-1915
Mining congress journal
Mining congress journal