DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| GM24 Geologic Map of the Millington, Clayton and Smyrna Quadrangles, Delaware | Ramsey, K.W., Tomlinson, J.L. | |
| RI78 Subsurface Geology of the Area Between Wrangle Hill and Delaware City, Delaware | Jengo, J.W., McLaughlin, P.P., Ramsey, K.W. |