Skipp, Betty, 1928-

The Maudlow and Sedan Formations of the Upper Cretaceous Livingston Group on the west edge of the Crazy Mountains Basin, Montana / by Betty Skipp and L. W. McGrew - Washington, D.C : United States Government Printing Office, 1977 - iv, 68 p. : ill. ; 23 cm. - Contributions to stratigraphy Geological Survey bulletin ; 1422-B .

Bibliography: p. 66-68


Geology, Stratigraphic--Cretaceous
Volcanic ash, tuff, etc.--Montana--Crazy Mountains
Geology--Montana--Crazy Mountains
Geology--Survey--Montana

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