1.
Poconos An Illustrated Natural History Guide
by Oplinger, Carl S., Halma, R...
ISBN: 9780813538310
List Price: $19.95
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Lehigh Valley A Natural and Environmental History
by Halma, Robert, Oplinger, Ca...
ISBN: 9780271020945
List Price: $30.95
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The Poconos: An Illustrated Natural History Guide, Revised and Expanded Edition
by Carl S. Oplinger
ISBN: 9780813538785
List Price: $44.95
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Poconos An Illustrated Natural History Guide
by Oplinger, Carl S., Halma, R...
ISBN: 9780813512945
List Price: $18.95
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6.
Lehigh Valley A Natural and Environmental History
by Halma, Robert, Oplinger, Ca...
ISBN: 9780271020938
List Price: $88.95