@misc{indiciae981654e8b2e4, title = {Appraisal of ground water for irrigation in the Little Falls area, Morrison County, Minnesota}, author = {John O. Helgesen}, year = {1973}, doi = {10.3133/wsp2009d}, url = {https://pubs.usgs.gov/publication/wsp2009D}, note = {Source identifier: wsp2009D} }