@misc{indiciae95a4dcbee6a4, title = {Results of hydrologic research at a low-level radioactive-waste disposal site near Sheffield, Illinois}, author = {Barbara J. Ryan}, year = {1991}, doi = {10.3133/wsp2367}, url = {https://pubs.usgs.gov/publication/wsp2367}, note = {Source identifier: wsp2367} }