TY  - BOOK
AU  - Keefer, William R.,
AU  - Hadley, R. F.
CN  - QE75
CN  - QE75
CY  - [Washington] :
DA  - 1976.
ID  - 120903
KW  - Coal mines and mining
KW  - Strip mining
PB  - U.S. Dept. of the Interior, Geological Survey,
PP  - [Washington] :
PY  - 1976.
T1  - Land and natural resource information and some potential environmental effects of surface mining of coal in the Gillette Area, Wyoming /
TI  - Land and natural resource information and some potential environmental effects of surface mining of coal in the Gillette Area, Wyoming /
VL  - 743
ER  -