| OFR55 Delaware Geological Survey Petrographic Data Viewer |
Schenck, W.S., Wang, L.T. |
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| IS7 The Delaware Geological Survey |
Pickett, T.E. |
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| OFR17 A Guide to Information on Benchmarks in Delaware |
Schenck, W.S. |
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| OFR13 Delaware's Extractive Mineral Industry |
Doyle, R.G., Pickett, T.E. |
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| OFR3 Preliminary Report on the Earthquake of February 28, 1973 |
Woodruff, K.D., Jordan, R.R., Pickett, T.E. |
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| OFR2 Preliminary Report on Seismic Events in Northern Delaware |
Jordan, R.R., Pickett, T.E., Woodruff, K.D. |
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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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