@misc{indiciaeeef2802d3d88, title = {Land use and land cover and associated maps for Sioux City, Iowa; Nebraska, South Dakota}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1982}, doi = {10.3133/ofr82246}, url = {https://pubs.usgs.gov/publication/ofr82246}, note = {Source identifier: ofr82246} }