TY  - BOOK
CN  - RC965.M5
CN  - RC965.M5
CY  - [Washington?
DA  - 1970]
ID  - 122731
KW  - Coal miners
KW  - Lungs
N1  - Conducted by Division of Environmental Health Sciences, University of California, Berkeley, and Dept. of Community Health Practice, Howard University.
PP  - [Washington?
PY  - 1970]
T1  - Papers and proceedings.
TI  - Papers and proceedings.
ER  -