Dix, Keith.
What's a coal miner to do? The mechanization of coal mining / Keith Dix. - Pittsburgh, Pa. : University of Pittsburgh Press, c1988. - xi, 258 p. : ill. - Pittsburgh series in social and labor history .
0822935856
United Mine Workers of America--History--20th century.
Coal-mining machinery--Social aspects--History--United States--20th century.
What's a coal miner to do? The mechanization of coal mining / Keith Dix. - Pittsburgh, Pa. : University of Pittsburgh Press, c1988. - xi, 258 p. : ill. - Pittsburgh series in social and labor history .
0822935856
United Mine Workers of America--History--20th century.
Coal-mining machinery--Social aspects--History--United States--20th century.