@misc{indiciaec0c6444a82d6, title = {Surface water supply of the United States, 1959, Part 5, Hudson Bay and upper Mississippi River Basins}, author = {J. V. B. Wells}, year = {1961}, doi = {10.3133/wsp1628}, url = {https://pubs.usgs.gov/publication/wsp1628}, note = {Source identifier: wsp1628} }