TY  - RPRT
TI  - Geologic map of the upper Holter Lake quadrangle, Lewis and Clark County, Montana
AU  - G. D. Robinson
AU  - M. E. McCallum
AU  - William Henry Hays
PY  - 1969
DO  - 10.3133/gq840
UR  - https://pubs.usgs.gov/publication/gq840
ID  - gq840
ER  -