TY  - RPRT
TI  - Water-level changes 1964-71, northern High Plains of Colorado
AU  - Warren E. Hofstra
AU  - John M. Klein
AU  - Thomas J. Major
PY  - 1971
DO  - 10.3133/ofr72166
UR  - https://pubs.usgs.gov/publication/ofr72166
ID  - ofr72166
ER  -