DGS Publications
Title | Authors | Publication Date |
---|---|---|
RI50 Plant Microfossils of the Calvert Formation of Delaware | Groot, J.J. | |
RI47 Ages of the Bethany, Beaverdam, and Omar Formations of Southern Delaware | Groot, J.J., Ramsey, K.W., Wehmiller, J.F. | |
B7 Engineering Materials of Northern New Castle County | Ward, R.F., Groot, J.J. |