TY  - RPRT
TI  - Structure contour map of the Powder River Basin, Wyoming and Montana
AU  - William Gamewell Pierce
AU  - Roselle M. Girard
AU  - Alfred Dexter Revised by Zapp
PY  - 1945
DO  - 10.3133/om133
UR  - https://pubs.usgs.gov/publication/om133
ID  - om133
ER  -