@misc{indiciaebbf016de270c, title = {Analysis of regional aquifers in the central Midwest of the United States in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Summary}, author = {Donald G. Jorgensen and J. O. Helgesen and D. C. Signor and R. B. Leonard and J. L. Imes and S. C. Christenson}, year = {1996}, doi = {10.3133/pp1414a}, url = {https://pubs.usgs.gov/publication/pp1414A}, note = {Source identifier: pp1414A} }