DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| RI62 The Cypress Swamp Formation, Delaware | Andres, A.S., Howard, C.S. | |
| B19 Geology and Hydrology of the Cockeysville Formation Northern New Castle County, Delaware | Plank, M.O., Woodruff, K.D., Werkheiser, W.H. |