OFR24 Saturated Thickness of the Water-Table Aquifer in Southern New Castle County, Delaware |
Demicco, P.M., Groot, J.J., Cherry, P.J. |
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B7 Engineering Materials of Northern New Castle County |
Ward, R.F., Groot, J.J. |
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B5 Sedimentary Petrology of the Cretaceous Sediments of Northern Delaware in Relation to Paleogeographic Problems |
Groot, J.J. |
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B3 Marine Upper Cretaceous Formations of the Chesapeake and Delaware Canal |
Organist, D.M., Richards, H.G., Groot, J.J. |
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B2 Geology and Ground-Water Resources of the Newark Area, Delaware with a Section on the Surface Water Resources |
Groot, J.J., Rasmussen, W.C., Hulme, A.E. |
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