Publication Found
- Misc. Field Studies Maps 1835 (F)--Map Showing Distribution of Alkaline Igneous Rocks and Associated Carbonatites and Peridotites in the Northern Midcontinent, U.S.A.
- by F. A. Hills , R. W. Scott, Jr. , T. J. Armbrustmacher , P. Berendsen, compilers
- p., 1991, $7.00
- Publisher: U.S. Geological Survey