TY  - BOOK
AU  - Ward,Janice R.
AU  - 
ED  - United States.
ED  - United States.
TI  - Preimpoundment water quality in the Tiogo river basin, Pennsylvania and New York
U1  - US 628.161 23rd ed.
PY  - 1981///
CY  - Harrisburg, Pa. : 
PB  - U.S. Geological Survey, Water Resources Division, 
KW  - Water quality
KW  - Tioga River Watershed (Pa. and N.Y.) Water quality
KW  - Pollution
KW  - Environmental aspects
KW  - United States
KW  - Sewage disposal, Rural
KW  - Tioga River Watershed
ER  -