| RI64 Results of Hydrogeologic Studies of the Cypress Swamp Formation, Delaware |
Andres, A.S., Howard, C.S. |
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| RI62 The Cypress Swamp Formation, Delaware |
Andres, A.S., Howard, C.S. |
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| RI57 Evaluation of the Stream-Gaging Network in Delaware |
Doheny, E.J. |
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| RI7 An Invertebrate Macrofauna from the Upper Cretaceous of Delaware |
Shapiro, E., Richards, H.G. |
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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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