TY  - BOOK
AU  - HOUGHTON, ROBERT L.
TI  - HYDROGEOCHEMISTRY OF THE UPPER PART OF THE FORT UNION GEOUP IN THE GASCOYNE LIGNITE STRIP..
PY  - 1987///
CY  - WASHINGTON: USDI.
KW  - WATER QUALITY
KW  - STRIP MINING
KW  - WATER, UNDERGROUND
ER  -