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. | |
| SP9 Generalized Geologic Map of Delaware | Pickett, T.E., Spoljaric, N., Jordan, R.R. | |
| SP4 Generalized Geologic Map of Delaware | Spoljaric, N., Jordan, R.R. |