@misc{indiciaed5e4a3b90770, title = {Stratigraphic sections of the Phosphoria formation in Wyoming, 1952}, author = {Richard Porter Sheldon and E. R. Cressman and L.D. Carswell and R.A. Smart}, year = {1954}, doi = {10.3133/cir325}, url = {https://pubs.usgs.gov/publication/cir325}, note = {Source identifier: cir325} }