RI64 Results of Hydrogeologic Studies of the Cypress Swamp Formation, Delaware |
Andres, A.S., Howard, C.S. |
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RI62 The Cypress Swamp Formation, Delaware |
Andres, A.S., Howard, C.S. |
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RI58 The Pliocene and Quaternary Deposits of Delaware: Palynology, Ages, and Paleoenvironments |
Groot, J.J., Jordan, R.R. |
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RI55 Geology of the Milford and Mispillion River Quadrangles |
Ramsey, K.W., Groot, J.J. |
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RI53 Geology of the Seaford Area, Delaware |
Andres, A.S., Ramsey, K.W., Groot, J.J. |
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RI50 Plant Microfossils of the Calvert Formation of Delaware |
Groot, J.J. |
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RI6 Some Observations on the Sediments of the Delaware River South of Wilmington |
Jordan, R.R., Groot, J.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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