@misc{indiciae4d484f58dc42, title = {Quality of surface waters of the United States, 1968, Part 6, Missouri River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1973}, doi = {10.3133/wsp2095}, url = {https://pubs.usgs.gov/publication/wsp2095}, note = {Source identifier: wsp2095} }