TY  - BOOK
AU  - Wesson,Thomas C.
AU  - Armstrong,Frederick E.
ED  - United States.
TI  - Elemental composition of coal mine dust
T2  - Report of investigations
PY  - 1974///]
CY  - [Washington]
PB  - U.S. Dept. of the Interior, Bureau of Mines
KW  - Mine dusts
ER  -