DGS Publications

Title Authors Publication Date
RI50 Plant Microfossils of the Calvert Formation of Delaware Groot, J.J.
B7 Engineering Materials of Northern New Castle County Ward, R.F., Groot, J.J.
B6 The Water Resources of Northern Delaware Rasmussen, W.C., Groot, J.J., Martin, R.O.R., McCarren, E.F., Behn, V.C.
B3 Marine Upper Cretaceous Formations of the Chesapeake and Delaware Canal Organist, D.M., Richards, H.G., Groot, J.J.