DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| SP16 Generalized Geologic Map of Delaware, Postcard | DGS Staff | |
| B19 Geology and Hydrology of the Cockeysville Formation Northern New Castle County, Delaware | Plank, M.O., Woodruff, K.D., Werkheiser, W.H. | |
| SP9 Generalized Geologic Map of Delaware | Pickett, T.E., Spoljaric, N., Jordan, R.R. |