DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| RI35 Unconformities in the Fluvial Columbia Sediments Revealed by Thin Pebble Beds | Spoljaric, N. | |
| RI18 Geology and Ground Water, University of Delaware, Newark, Delaware | Woodruff, K.D., Miller, J.C., Jordan, R.R., Spoljaric, N., Pickett, T.E. | |
| RI10 Pleistocene Channels of New Castle County, Delaware | Spoljaric, N. |