| B19 Geology and Hydrology of the Cockeysville Formation Northern New Castle County, Delaware |
Plank, M.O., Woodruff, K.D., Werkheiser, W.H. |
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| B17 Geological Studies of Cretaceous and Tertiary Section, Test Well Je32-04, Central Delaware |
Benson, R.N., Jordan, R.R., Spoljaric, N. |
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| B13 Geology, Hydrology, and Geophysics of Columbia Sediments in the Middletown-Odessa Area, Delaware |
Spoljaric, N., Woodruff, K.D. |
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| B9 Stratigraphy of the Sedimentary Rocks of Delaware |
Jordan, R.R. |
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