Cite
[Creator not found], (n.d.). Osceola County, Iowa, 1938, aerial photomosaic index. United States. Department of Agriculture, United States. Agricultural Stabilization and Conservation Service. https://digital.lib.uiowa.edu/islandora/object/ui%3Aapi_138 (imagery)
Available from: https://geo.btaa.org/catalog/ui_api_138