TY  - RPRT
TI  - Preliminary geologic map of the Bertha 2 NW Quadrangle, Campbell County, Wyoming
AU  - E. J. McKay
PY  - 1974
DO  - 10.3133/ofr74173
UR  - https://pubs.usgs.gov/publication/ofr74173
ID  - ofr74173
ER  -