OFR54 Bedrock Geologic Map of the Delaware Piedmont |
Schenck, W.S. |
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SP16 Generalized Geologic Map of Delaware, Postcard |
DGS Staff |
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GM10 Bedrock Geologic Map of the Piedmont of Delaware and Adjacent Pennsylvania |
Schenck, W.S., Plank, M.O., Srogi, L. |
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B19 Geology and Hydrology of the Cockeysville Formation Northern New Castle County, Delaware |
Plank, M.O., Woodruff, K.D., Werkheiser, W.H. |
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OFR39 Basic Data for the Geologic Map of the Seaford Area, Delaware |
Andres, A.S., Ramsey, K.W., Schenck, W.S. |
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SP9 Generalized Geologic Map of Delaware |
Pickett, T.E., Spoljaric, N., Jordan, R.R. |
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B13 Geology, Hydrology, and Geophysics of Columbia Sediments in the Middletown-Odessa Area, Delaware |
Spoljaric, N., Woodruff, K.D. |
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