Search Results

1. In non-union mines : the diary of a coal digger in central Pennsylvania, August-September, 1921.

2. Development of patterns of coal workers' pneumoconiosis in Pennsylvania and its association with respiratory impairment.

3. Pneumoconiosis in Pennsylvania's bituminous mining industry.

4. Pneumoconiosis mortality in Pennsylvania.

5. Pneumoconiosis study in central Pennsylvania coal mines.

6. Pneumoconiosis study in central Pennsylvania coal mines : I. Medical phase.

7. Pneumoconiosis in Pennsylvania.

8. Pneumoconiosis mortality in Pennsylvania.

9. Comparison of dust exposures in Pennsylvania anthracite and bituminous coal mines.

10. Environmental dust study of anthracite coal mines of Eastern Pennsylvania.