@misc{indiciaea3e611212885, title = {Quality of surface waters of the United States, 1970, Part 6, Missouri River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1975}, doi = {10.3133/wsp2155}, url = {https://pubs.usgs.gov/publication/wsp2155}, note = {Source identifier: wsp2155} }