@misc{indiciae1694c2d55d23, title = {Digital map of specific yield for the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming}, author = {J. R. Cederstrand and M.F. Becker}, year = {1998}, doi = {10.3133/ofr98414}, url = {https://pubs.usgs.gov/publication/ofr98414}, note = {Source identifier: ofr98414} }