[26733] North American, Strata: Proterozoic, Period: 11581, Rec 1912

[Rec № 1912] The stratigraphy and sedimentology of the Middle Proterozoic Grinnell Formation, Glacier National Park and the Whitefish Range, northwestern Montana

Kuhn, J. A.
Masters thesis, University of Montana, 1987, « Missing Vol »