[21681] North American, Strata: Upper Carboniferous (Pennsylvanian), Period: 26114, Rec 1643

[Rec № 1643] Petrology of the Big Snowy Group, Amsden Formation, and Quadrant Sandstone at Sappington Canyon, Jefferson County, Montana

Leckie, G. G.
Doctoral dissertation, Indiana University, 1964, « Missing Vol »