TY  - RPRT
TI  - Surface water supply of the United States, 1929, Part IX, Colorado River basin
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1931
DO  - 10.3133/wsp689
UR  - https://pubs.usgs.gov/publication/wsp689
ID  - wsp689
ER  -