DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| RI58 The Pliocene and Quaternary Deposits of Delaware: Palynology, Ages, and Paleoenvironments | Groot, J.J., Jordan, R.R. | |
| OFR13 Delaware's Extractive Mineral Industry | Doyle, R.G., Pickett, T.E. | |
| SP9 Generalized Geologic Map of Delaware | Pickett, T.E., Spoljaric, N., Jordan, R.R. |