Pre-Cambrian Geology and Mineral Resources of the Delaware Water Gap and Easton Quadrangles, New Jersey and Pennsylvania .
Washington, D. C. United States Geological Survey, Washington, D.C, 1941. First Edition. Softcover. Unmarked. Map intact in rear pocket. ; Book Description; Spine has no signs of creasing. Pages are clean and not marred by notes or folds. Covers are square with minor wear. Ships Safe and Fast. Fold outs..... More