1. Bedrock topography of eastern Morris and western Essex counties, New Jersey [cartographic material]
1968. 2012-10-10T18:50:25Z. 2013-03-18T22:22:46Z. Nichols, William D. U.S. Geological Survey. English. Public. New Jersey, Essex County, Morris County, Essex County (N.J.), and Morris County (N.J.).
