| RI60 Geochemistry of the Mafic Rocks, Delaware Piedmont and Adjacent Pennsylvania and Maryland: Confirmation of Arc Affinity |
Plank, M.O., Srogi, L., Schenck, W.S., Plank, T.A. |
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| RI34 Long-Term Chemical-Quality Changes in Selected Delaware Streams |
McKenzie, S.W. |
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| RI28 Well and Aquifer Tests, Laird Tract Well Field, Newark, Delaware |
Talley, J.H., Hahn, W.F. |
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| RI27 Ground-Water Investigations in the Delaware Piedmont for the City of Newark, 1976 |
Hahn, W.F. |
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| OFR9 Geologic Field Trips in Delaware |
Benson, R.N., Hahn, W.F., Jordan, R.R., Pickett, T.E., Talley, J.H., Thompson, A.M., Woodruff, K.D. |
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| B11 Ground-Water Resources of Southern New Castle County Delaware |
Rima, D.R., Coskery, O.J., Anderson, P.W. |
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| B6 The Water Resources of Northern Delaware |
Rasmussen, W.C., Groot, J.J., Martin, R.O.R., McCarren, E.F., Behn, V.C. |
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