TY  - BOOK
AU  - Briel,L.I.
ED  - United States.
ED  - Geological Survey (U.S.)
TI  - Water quality in the Appalachian Valley and Ridge, the Blue Ridge, and the Piedmont physiographic provinces, eastern United States
PY  - 1997///
CY  - Washington, DC
PB  - U.S. Geological Survey
KW  - Water quality
KW  - Appalachian Region
N1  - Includes bibliographical references
ER  -