TY  - BOOK
AU  - Cole,Lewis Gregory
AU  - Cole,William Gregory
TI  - Pneumoconiosis (siliciosis) : : the story of dusty lungs: 
PY  - 1940///
CY  - New York : 
PB  - John  B. Peirce Foundation , 
KW  - Lung Diseases
KW  - Lung diseases, Obstructive
ER  -