Author | Title | Subject | Date | Publication Type | ||
---|---|---|---|---|---|---|
1 | Hannah, Richard Lloyd | Case study of underground coal mining productivity in Utah | Coal mines and mining; Coal miners; Coal trade | 1981-12 | dissertation | |
2 | Brinley, John Ervin | Government and labor: the coal industry, 1946-1947 | Coal trade; Strikes and lockouts; United Mine Workers of America | 1967-07 | thesis |