DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| 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. | |
| GM 8 Geology of the Milford and Mispillion River Quadrangles, Delaware | Ramsey, K.W. |