Ward, Janice R. <br/><br/>
Preimpoundment water quality in the Tiogo river basin, Pennsylvania and New York / 
by Janice R. Ward 
 - Harrisburg, Pa. :   U.S. Geological Survey, Water Resources Division,   1981 
 - v, 142 p. ;  27 cm. 
 - Water resources investigations ;  no. 81-1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality --Tioga River Watershed (Pa. and N.Y.) Water quality.<br/>Pollution--Environmental aspects--United States<br/>Sewage disposal, Rural--United States
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States --Tioga River Watershed.
<br/><br/><label>Dewey Class. No.: </label>US 628.161  / W 210(March/1981)