TY  - BOOK
AU  - Kloos,E.J.
AU  - Raymond,L.D.
AU  - Spinetti,L.
TI  - Gas masks for respiratory protection against a mines
U1  -  616.99424075 
PY  - 1966///
CY  - Washington, D. C.
PB  - United States Department of the interior
KW  - Lungs
KW  - Dust diseases
KW  - Coal miners
KW  - Diseases
KW  - Respiratory organs
ER  -