1. R. Bennett, D. N. Lambert, M. H. Hulbert, J. T. Burns, W. B. Sawyer, and G. L. Frecland . 1983 . Electrical resistivity/conductivity in seabed sediments. Handbook of Geophysical Exploration at Sea . CRC Press Inc., Cleveland, Ohiopp.333 -375 .
2. P. B. Duran, 1986 . Distribution of bottom sediments and effects of proposed dredging in the ship channel of the Delaware River between northeast Philadelphia, Pennsylvania, and Wilmington, Delaware, 1984. U.S. Geological Survey Hydrologic Investigations Atlas HA-697.
3. T. V. Fusillo, J. J. Hochreiter, and D. G. Lord . 1984 . Water-quality data for the Potomac-Raritan-Magothy aquifer system in southwestern New Jersey, 1923-83. U.S. Geological Survey Open File Report 84-737.
4. H. R. Gill, and G. M. Farlekas . 1976 . Geohydrologic maps of the Potomac-Raritan-Magothy aquifer system in the New Jersey Coastal Plain. U.S. Geological Survey Hydrologic Atlas HA 557. Scale 1:500,000.