@misc{indiciae5906c3404707, title = {Surface water supply of the United States, 1923, Part V, Hudson Bay and upper Mississippi River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1926}, doi = {10.3133/wsp565}, url = {https://pubs.usgs.gov/publication/wsp565}, note = {Source identifier: wsp565} }