@misc{indiciaed11a4d511f92, title = {Equivalent freshwater head and dissolved-solids concentration of water in rocks of Cambrian, Ordovician, and Mississippian age in the northern Midcontinent, U.S.A.}, author = {D. G. Jorgensen and J. O. Helgesen and R. B. Leonard and D. C. Signor}, year = {1986}, doi = {10.3133/mf1835b}, url = {https://pubs.usgs.gov/publication/mf1835B}, note = {Source identifier: mf1835B} }