Title: Geologic map of the Riegelsville quadrangle, Pennsylvania-New Jersey /
Authors: McLaughlin, Dean B. 1901-1965,; Davis, Robert E., 1924-; Drake, Avery Ala, 1927-; Geological Survey (U.S.)
Publisher: U.S. Geological Survey,
Year: 1967
Subjects: Geology Pennsylvania Maps; Geology New Jersey Maps.; Pennsylvania Maps; New Jersey Maps.