TY  - RPRT
TI  - Digital map of water-level changes in the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1980 to 1994
AU  - Brian C. Fischer
AU  - Virginia L. McGuire
PY  - 1999
DO  - 10.3133/ofr9996
UR  - https://pubs.usgs.gov/publication/ofr9996
ID  - ofr9996
ER  -