TY  - RPRT
TI  - Map showing density of dwelling units in the Tungsten quadrangle, Boulder, Gilpin, and Jefferson Counties, Colorado
AU  - H. R. Covington
AU  - D. J. Gable
PY  - 1973
DO  - 10.3133/i792b
UR  - https://pubs.usgs.gov/publication/i792B
ID  - i792B
ER  -