DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| GM 5 Geology of the Smyrna-Clayton Area, Delaware | Pickett, T.E., Benson, R.N. | |
| SP9 Generalized Geologic Map of Delaware | Pickett, T.E., Spoljaric, N., Jordan, R.R. | |
| SP6 Correlation Chart of the Coastal Plain Units in New Jersey, Delaware, and Maryland | Pickett, T.E. | |
| SP4 Generalized Geologic Map of Delaware | Spoljaric, N., Jordan, R.R. |