GM27 Geologic Map of the Elkton, Saint Georges, and Delaware City Quadrangles, Delaware |
Tomlinson, J.L., Ramsey, K.W. |
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RI82 Southern New Castle – Northern Kent Counties Groundwater Monitoring Project: Results of Subsurface Exploration and Hydrogeological Studies |
Andres, A.S., Coppa, Z.J., He, C., McKenna, T.E. |
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RI55 Geology of the Milford and Mispillion River Quadrangles |
Ramsey, K.W., Groot, J.J. |
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OFR13 Delaware's Extractive Mineral Industry |
Doyle, R.G., Pickett, T.E. |
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