RI78 Subsurface Geology of the Area Between Wrangle Hill and Delaware City, Delaware |
Jengo, J.W., McLaughlin, P.P., Ramsey, K.W. |
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RI48 Geologic And Hydrologic Studies of the Oligocene - Pleistocene Section near Lewes, Delaware |
Benson, R.N., Andres, A.S., Ramsey, K.W., Talley, J.H. |
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RI47 Ages of the Bethany, Beaverdam, and Omar Formations of Southern Delaware |
Groot, J.J., Ramsey, K.W., Wehmiller, J.F. |
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RI34 Long-Term Chemical-Quality Changes in Selected Delaware Streams |
McKenzie, S.W. |
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