@misc{indiciaea3f99482858d, title = {Concepts and data-collection techniques used in a study of the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois}, author = {R. W. Healy and M.P. DeVries and Robert G. Striegl}, year = {1986}, doi = {10.3133/wri854228}, url = {https://pubs.usgs.gov/publication/wri854228}, note = {Source identifier: wri854228} }