- Delaware City quadrangle, Delaware--New Jersey, 1948 : 7.5 minute series (topographic) (SuDoc I 19.81:39075-E 5-TF-024/976) by U.S. Geological Survey, 1991
- Coastal energy activity impact analysis for Delaware City, Delaware by Andrew Zimmerman, 1982
- Flood insurance study : city of Delaware City, Delaware, New Castle County (SuDoc FEM 1.209:100022/2)
- Life in a refinery town: The history and impact of the Getty Oil Company in Delaware City, Delaware by Andrew D Zimmerman, 1983
- Opinion of Hon. John W. Davis relating to the right of the City of New York to utilize certain waters of the Delaware River: June 22, 1928 by John W Davis, 1928
- Ground-water investigations in the Delaware piedmont for the city of Newark, 1976 (Delaware Geological Survey. Report of investigations) by William F Hahn, 1977
- Report on a system of sewerage for the city of Wilmington, Delaware (Wilmington) by Rudolph Hering, 1883
- Delaware City quadrangle, Delaware--New Jersey: 7.5 minute series (topographic) by Geological Survey (U.S.), 2001
- Flood insurance study city of Westerville, Ohio, Franklin and Delaware counties (SuDoc FEM 1.209:390179)
- Cultural resource review and observation during rehabilitation of the Alexauken Creek aqueduct on the Delaware & Raritan Canal feeder, city of Lambertville and Delaware Township, Hunterdon County, N.J by Brian H Morrell, 1991
- From spices of success, to disaster at sea: The story of the Colburn family of Delaware City, Delaware by Christopher E Haugh, 1989
- Probability analysis of allowable yield of New York City reservoirs in the Delaware River Basin by Clayton Haines Hardison, 1981
- Preliminary planning studies for the city of Wilmington, Delaware by Harold M Lewis, 1953
- Testimonials and educational principles: Of the Rev. J. Walker Macbeth, principal of [Delaware City Academy] by J. Walker Macbeth, 1859
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