Recent geological history of the Delaware Valley below the Water Gap / by Freeman Ward.
Material type:
TextSeries: Bulletin G ; 10Publication details: Harrisburg, Pa. : Dept. of Internal Affairs, Topographic and Geologic Survey, 1938.Description: v, 76 p. : ill., maps ; 23 cmSubject(s): LOC classification: - QE158.D4 W3
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Includes bibliographical references.
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