TY  - BOOK
AU  - Courtney, Welby G.
AU  - Kost, John A.
CN  - I 28.26
CN  - TN312
CY  - Pittsburgh, Pa. :
DA  - 1982.
ID  - 40892
KW  - Coal mines and mining
KW  - Mine dusts.
N1  - "Bureau of Mines Coal Mine Health and Safety Program."
N1  - "February 1982."
PB  - U.S. Dept. of the Interior, Bureau of Mines,
PP  - Pittsburgh, Pa. :
PY  - 1982.
T1  - Dust deposition in coal mine airways /
TI  - Dust deposition in coal mine airways /
VL  - 116
ER  -