@misc{indiciae0031fe3b81af, title = {Magnitude and frequency of floods in the United States, part 6–B. Missouri River basin below Sioux City, Iowa}, author = {H. F. Matthai}, year = {1968}, doi = {10.3133/wsp1680}, url = {https://pubs.usgs.gov/publication/wsp1680}, note = {Source identifier: wsp1680} }