Mid-Cretaceous fluvial deposits of the eastern margin, western interior basin :
Nishnabotna Member, Dakota Formation ; a field guide to the Cretaceous of Guthrie County /
Brian J. Witzke and Greg A. Ludvigson, with contributions by Robert L. Brenner [and others].

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Limited (search only)   v.17(1996) University of Illinois at Urbana-Champaign