TY  - BOOK
T1  - A geographic information system data base for coal and water resources of the Powder River coal region, southeastern Montana /
DA  - [1990]
CY  - Helena, Mont. :
AU  - Cannon, M. R.
VL  - 90-568
CN  - I 19.76:
PB  - U.S. Geological Survey,
PP  - Helena, Mont. :
PY  - [1990]
N1  - Distributed to some depository libraries in microfiche.
N1  - Chiefly tables.
N1  - "December 1990"
ID  - 241106
KW  - Information storage and retrieval systems
KW  - Coal
KW  - Water resources development
TI  - A geographic information system data base for coal and water resources of the Powder River coal region, southeastern Montana /
ER  -