@misc{indiciaeaf68cdc4b3a7, title = {Work plan for the Sangamon River basin, Illinois}, author = {J. K. Stamer and Dean M. Mades}, year = {1983}, doi = {10.3133/ofr82693}, url = {https://pubs.usgs.gov/publication/ofr82693}, note = {Source identifier: ofr82693} }