The Appalachian Basin
Robert C. Milici
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Wallace de Witt
John M. Dennison
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Edwin J. Anderson
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Jack D. Beuthin
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Edward Cotter
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Richard J. Diecchio
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...
David Blood
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Scott McCallum
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Jalal Jalali
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Ashley Douds
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Merril Stypula
John E. Repetski
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Robert T. Ryder
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Katharine Lee Avary
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Michael H. Trippi
Robert T. Ryder
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Christopher S. Swezey
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Michael H. Trippi
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Erika E. Lentz
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K. Lee Avary
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...
Michael H. Trippi
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Robert D. Crangle
John B. Roen
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L.G. Wallace
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Wallace De Witt