DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| GM10 Bedrock Geologic Map of the Piedmont of Delaware and Adjacent Pennsylvania | Schenck, W.S., Plank, M.O., Srogi, L. | |
| GM 5 Geology of the Smyrna-Clayton Area, Delaware | Pickett, T.E., Benson, R.N. |
Geologic and hydrologic research and exploration for Delaware