Geologic map of the Hellertown quadrangle, Northampton, Bucks, and Lehigh counties, Pennsylvania [microform]

Author:: Geological Survey (U.S.)
Publisher:: The Survey
Subject:: Geology
Spatial Coverage:: Pennsylvania, Northampton County, Bucks County, and Lehigh County
Language:: English
Year:: 1996
Date Issued:: 2002-06-01T04:00:00Z
Date Modified:: 2002-06-01T04:00:00Z
Library Catalog Record:: https://search.library.yale.edu/catalog/5174778
Digital Collections Record:: No Digital Collections record

Geologic map of the Hellertown quadrangle, Northampton, Bucks, and Lehigh counties, Pennsylvania [microform] Yale Public content