TY  - RPRT
TI  - Digital map of changes in water levels from predevelopment to 1980 for the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
AU  - Joel R. Cederstrand
AU  - Mark F. Becker
PY  - 1999
DO  - 10.3133/ofr99265
UR  - https://pubs.usgs.gov/publication/ofr99265
ID  - ofr99265
ER  -