TY - RPRT TI - Stratigraphic sections of the Phosphoria formation in Montana, 1949-50, part 1 AU - Earle Rupert Cressman AU - W.H. Wilson AU - C.W. Tandy AU - W.J. Garmoe PY - 1953 DO - 10.3133/cir302 UR - https://pubs.usgs.gov/publication/cir302 ID - cir302 ER -