Search Constraints
You searched for:
All Creators
Kerr, Lorin E., 1909-
Remove constraint All Creators: Kerr, Lorin E., 1909-
All Subjects
Chest--Diseases.
Remove constraint All Subjects: Chest--Diseases.
All Subjects
Industrial productivity--United States.
Remove constraint All Subjects: Industrial productivity--United States.
Subject Topical
Coal miners--Dust diseases--Prevention and control.
Remove constraint Subject Topical: Coal miners--Dust diseases--Prevention and control.
Subject Topical
Pneumoconiosis.
Remove constraint Subject Topical: Pneumoconiosis.
1 entry found