Water quality in the Allegheny and Monongahela River basins, Pennsylvania, West Virginia, New York, and Maryland, 1996-98

Circular ◽  
2000 ◽  
Author(s):  
Robert M. Anderson ◽  
Kevin M. Beer ◽  
Theodore F. Buckwalter ◽  
Mary E. Clark ◽  
Steven D. McAuley ◽  
...  
Author(s):  
Robert T. Ryder ◽  
Christopher S. Swezey ◽  
Michael H. Trippi ◽  
Erika E. Lentz ◽  
K. Lee Avary ◽  
...  

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