Upper Cedar Valley stratigraphy, north-central Iowa, Lithograph City Formation /
Bill J. Bunker, Brian J. Witzke, Jed Day.

APA Citation

Bunker, B. J., Day, J., Witzke, B. J., Geological Society of Iowa. (1986). Upper Cedar Valley stratigraphy, north-central Iowa, Lithograph City Formation. [Place of publication not identified]: Geological Society of Iowa.

MLA Citation

Bunker, B. J, Jed Day, Brian J Witzke, and Geological Society of Iowa. Upper Cedar Valley Stratigraphy, North-central Iowa, Lithograph City Formation. [Place of publication not identified]: Geological Society of Iowa, 1986.