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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RI65 Wellhead Protection Area Delineations for the Lewes-Rehoboth Beach Area, Delaware |
Duffy, C.A., Costas, E.M., Andres, A.S. |
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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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B1 Ground-Water Problems in Highway Construction and Maintenance |
Rasmussen, W.C., Haigler, E.B. |
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