| GM27 Geologic Map of the Elkton, Saint Georges, and Delaware City Quadrangles, Delaware |
Tomlinson, J.L., Ramsey, K.W. |
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| GM26 Geologic Map of the Cecilton and Middletown Quadrangles, Delaware |
Tomlinson, J.L., Ramsey, K.W. |
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| GM25 Geologic Map of Offshore Delaware |
Mattheus, C.R., Ramsey, K.W., Tomlinson, J.L. |
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| GM24 Geologic Map of the Millington, Clayton and Smyrna Quadrangles, Delaware |
Ramsey, K.W., Tomlinson, J.L. |
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| RI78 Subsurface Geology of the Area Between Wrangle Hill and Delaware City, Delaware |
Jengo, J.W., McLaughlin, P.P., Ramsey, K.W. |
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| GM17 Geologic Map of the Harbeson Quadrangle, Delaware |
Ramsey, K.W., Tomlinson, J.L. |
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| GM16 Geologic Map of the Fairmount and Rehoboth Beach Quadrangles, Delaware |
Ramsey, K.W. |
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