TY  - BOOK
AU  - Hamilton,Patrick A.
AU  - White,D.H.
AU  - Matson,Thomas K.
ED  - United States.
TI  - The reserve base of U.S. coals by sulfur content: 2. The Western States 
T2  - Information circular
PY  - 1975///.]
CY  - [Washington]
PB  - U.S. Dept. of the Interior, Bureau of Mines
KW  - Coal
KW  - United States
KW  - Sulphur content
ER  -