B20 Stratigraphy of the Post-Potomac Cretaceous-Tertiary Rocks of Central Delaware |
Benson, R.N., Spoljaric, N. |
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OFR5 Removal of Metallic Contaminants from Industrial Waste Waters by the Use of Greensands, A Preliminary Report |
Spoljaric, N., Crawford, W.A. |
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OFR4 Papers Presented by Staff Members of the Delaware Geological Survey at the Baltimore Meeting of the Northeastern Section of the Geological Society of America, March, 1974 |
Pickett, T.E. |
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GM 1 Geology of the Chesapeake and Delaware Canal Area, Delaware |
Pickett, T.E. |
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