TY  - RPRT
TI  - Activities and services of the U.S. Geological Survey, Denver area, Colorado
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1969
DO  - 10.3133/70039428
UR  - https://pubs.usgs.gov/publication/70039428
ID  - 70039428
ER  -