| GM26 Geologic Map of the Cecilton and Middletown Quadrangles, Delaware |
Tomlinson, J.L., Ramsey, K.W. |
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| GM14 Geologic Map of Kent County, Delaware |
Ramsey, K.W. |
|
| GM13 Geologic Map of New Castle County, Delaware |
Ramsey, K.W. |
|
| GM12 Geology of the Lewes and Cape Henlopen Quadrangles, Delaware |
Ramsey, K.W. |
|
| GM11 Geology of the Ellendale and Milton Quadrangles, Delaware |
Ramsey, K.W. |
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| RI55 Geology of the Milford and Mispillion River Quadrangles |
Ramsey, K.W., Groot, J.J. |
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| GM 8 Geology of the Milford and Mispillion River Quadrangles, Delaware |
Ramsey, K.W. |
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