12. Vaupel, D.E., and Prince, K.R., Koehler, A.J., and Runco, Mario, 1977, Potentiometric surfaces of the upper glacial and Magothy aquifers and selected streamflow statistics, 1943-1972, on Long Island, New York: U.S. Geological Survey Open-File Report 77-528, 23 p. (Approved for Public Release) http://pubs.usgs.gov/ha/ha730/ch_m/M-references.html
