Precambrian Basement Map of the Trans-Hudson Orogen and Adjacent Terranes, Northern Great Plains, U. S. A. ; Prepared in Cooperaton with the Geological Surveys of Minnesota, Montana, Nebraska, North Dakota, South Dakota, and Wyoming.
Ephemera, Washington, D. C. U. S. Department of the Interior U. S. Geological Survey, 1991. Very Good with no dust jacket.