TY  - RPRT
TI  - Report upon United States geological surveys west of the one hundredth meridian, Volume III: Supplement -- geology
AU  - George Montague Wheeler
AU  - John J. Stevenson
PY  - 1881
DO  - 10.3133/70039250
UR  - https://pubs.usgs.gov/publication/70039250
ID  - 70039250
ER  -