Williams, Donald R.

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Books by Williams, Donald R. (50 max)

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Effects of coal-mine discharges on the quality of the Stonycreek River and its tributaries, Somerset and Cambria counties, Pennsylvania

1996

Williams, Donald R.

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Water-resources data for Indiana County, Pennsylvania

1991

Williams, Donald R.

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Modern mathematics for business decision-making

1974

Williams, Donald R., Richard H. Williams, Donald R. Williams

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Adirondacks 1830-1930

2002

Williams, Donald R.

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Stream water quality in coal mined areas of the lower Cheat River Basin, West Virginia and Pennsylvania, during low-flow conditions, July 1997

1999

Williams, Donald R.

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Along the Adirondack Trail

2004

Williams, Donald R.

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Adirondack Ventures

2006

Williams, Donald R.

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Finite mathematics with applications

1976

Williams, Donald R.

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Modern mathematics with applications

1976

Williams, Donald R.

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Basic calculus with applications

1979

Williams, Donald R.

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Water resources of Indiana County, Pennsylvania

1997

Williams, Donald R.

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Nutrients and organic compounds in Deer Creek and South Branch Plum Creek in southwestern Pennsylvania, April 1996 through September 1998

2001

Williams, Donald R.

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Adirondacks 1931-1990

2003

Williams, Donald R.

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Adirondack Hotels and Inns

2008

Williams, Donald R.

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Adirondack People and Places

2012

Williams, Donald R.

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NICHOLAS STONER and the SAMMONS BOYS or a Tale of the Mohawk Valley

2023

Williams, Donald R.

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Grandfather's Tool Chest

2023

Williams, Donald R.

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Adirondack / Mohawk Valley Preserving Our Roots Series

2023

Williams, Donald R.