DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| HM8 Geohydrology of the Middletown-Odessa Area, Delaware | Woodruff, K.D. | |
| HM6 Geohydrology of the Chesapeake and Delaware Canal Area, Delaware | Woodruff, K.D. | |
| HM1 Geohydrology of the Dover, Area, Delaware | Woodruff, K.D. |