Geology and mineral resources of the Quakertown-Doylestown district, Pennsylvania and New Jersey / by F. Bascom ... [et al.]
Material type:
TextSeries: Geological Survey bulletin ; 828.Publication details: Washington : U.S. G.P.O., 1931.Description: iv, 62 p. : ill. (some folded), maps (some col.) ; 24 cmSubject(s): LOC classification: - QE75 .B9 no. 828
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Col. map on folded leaf in pocket.
Includes bibliographical references and index.
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