(1947). Accident experience iron-ore mines, Lake Superior district, 1940-45 / by Frank E. Cash.
Cita Chicago (17th ed.)Accident Experience Iron-ore Mines, Lake Superior District, 1940-45 / by Frank E. Cash. 1947.
Cita MLA (9th ed.)Accident Experience Iron-ore Mines, Lake Superior District, 1940-45 / by Frank E. Cash. 1947.
Atenció: Aquestes cites poden no estar 100% correctes.