TY  - RPRT
TI  - Gravity and aeromagnetic studies of the Powder River basin and surrounding areas, southeastern Montana, northeastern Wyoming, and western South Dakota
AU  - Stephen L. Robbins
PY  - 1994
DO  - 10.3133/b1917r
UR  - https://pubs.usgs.gov/publication/b1917R
ID  - b1917R
ER  -