DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| OFR21 A Guide to Fossil Sharks, Skates, and Rays from the Chesapeake and Delaware Canal Area, Delaware | Lauginiger, E.M., Hartstein, E.F. | |
| B10 Salinity of the Delaware Estuary | Cohen, B., McCarthy, L.T. Jr. | |
| B7 Engineering Materials of Northern New Castle County | Ward, R.F., Groot, J.J. | |
| RI1 Salinity of the Delaware Estuary | Cohen, B. |