TY - RPRT TI - Stratigraphic sections of the Phosphoria formation in Montana, 1948 AU - Montis Ruhl Klepper AU - F.S. Honkala AU - O.A. Payne AU - E. T. Ruppel PY - 1953 DO - 10.3133/cir260 UR - https://pubs.usgs.gov/publication/cir260 ID - cir260 ER -