TY  - RPRT
TI  - Stratigraphic sections of the phosphoria formation, 1953
AU  - Roger Warren Swanson
AU  - Louis Duncan Cardwell
AU  - Richard Porter Sheldon
AU  - T. M. Cheney
PY  - 1956
DO  - 10.3133/cir375
UR  - https://pubs.usgs.gov/publication/cir375
ID  - cir375
ER  -