Preliminary biostratigraphic map, Colyear Springs quadrangle, California

by Jones, David Lawrence, 1930-
[Reston, Va.?] : U.S. Geological Survey, 1973

Stratigraphic nomenclature of nonmarine Cretaceous rocks of inner margin of coastal plain in Delaware and adjacent states /

by Jordan, Robert R.
Newark, Del. : Delaware Geological Survey, 1983