DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| 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. | |
| OFR3 Preliminary Report on the Earthquake of February 28, 1973 | Woodruff, K.D., Jordan, R.R., Pickett, T.E. | |
| OFR2 Preliminary Report on Seismic Events in Northern Delaware | Jordan, R.R., Pickett, T.E., Woodruff, K.D. |