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].

APA Citation

Witzke, B. J., Brenner, R. L., Ludvigson, G. A. (Greg A.). (1996). Mid-Cretaceous fluvial deposits of the eastern margin, western interior basin: Nishnabotna Member, Dakota Formation ; a field guide to the Cretaceous of Guthrie County. Iowa City, Iowa: Iowa Dept. of Natural Resources, Energy and Geological Resources Division, Geological Survey Bureau.

MLA Citation

Witzke, Brian J, Robert L. Brenner, and G. A. (Greg A.) Ludvigson. Mid-Cretaceous Fluvial Deposits of the Eastern Margin, Western Interior Basin: Nishnabotna Member, Dakota Formation ; a Field Guide to the Cretaceous of Guthrie County. Iowa City, Iowa: Iowa Dept. of Natural Resources, Energy and Geological Resources Division, Geological Survey Bureau, 1996.