@misc{indiciae8fb49ec0ffde, title = {Evaluation of nonpoint-source contamination, Wisconsin: Selected data for 1992 water year}, author = {D.J. Graczyk and J.F. Walker and S.R. Greb and Steven R. Corsi and D.W. Owens}, year = {1993}, doi = {10.3133/ofr93630}, url = {https://pubs.usgs.gov/publication/ofr93630}, note = {Source identifier: ofr93630} }