Metal-mine Accidents in the United States During the Calendar Year 1938

by Charles George Maier, Eugene Delos Gardner, L. C. Ilsley, United States. Bureau of Mines, William Carroll Schroeder, William Waugh Adams, Abraham Albert Berk, Alva Britt Hooker, J. R. Thoenen, L. E. Geyer, M. E. Kolhos, McHenry Mosier, Virginia E. Wrenn, M. G. Parry, S. L. Windes, William Henry Roadstrum · 1940