@misc{indiciae4c9f0ce51228, title = {Chemical hydrogeology in natural and contaminated environments}, author = {W. Back and M.J. Baedecker}, year = {1989}, doi = {10.1016/0022-1694(89)90164-9}, url = {https://pubs.usgs.gov/publication/70015600}, note = {Source identifier: 70015600} }