U.S. Geological Survey-Missouri Geological Survey symposium : mineral-resource potential of the mid-continent : program and abstracts : St. Louis, Missouri, April 11-12, 1989 /
Pratt, Walden P.
Goldhaber, Martin B.
Missouri.Geological Survey.
Washington : Dept. of the Interior, U.S. Geological Survey : U.S. G.P.O. ; Denver, CO : Free application to the Books and Open-File Reports Section, U.S. Geological Survey,
1990.
Includes bibliographical references and index.
Mines and mineral resources
Geology