@misc{indiciae77147ecbbc62,
  title = {Stratigraphic sections of the Phosphoria formation in Montana, 1949-50, part 2},
  author = {Roger Warren Swanson and E. R. Cressman and R. S. Jones and B.K. Replogle},
  year = {1953},
  doi = {10.3133/cir303},
  url = {https://pubs.usgs.gov/publication/cir303},
  note = {Source identifier: cir303}
}