@misc{indiciaead41f6e10109, title = {Surface water supply of the United States, 1907-8. Part V: Upper Mississippi river and Hudson Bay basins}, author = {Albert Howard Horton and Elwin Francis Chandler and Roy Hale Bolster and Marshall O. Leighton}, year = {1910}, doi = {10.3133/wsp245}, url = {https://pubs.usgs.gov/publication/wsp245}, note = {Source identifier: wsp245} }