1930. Iowa. State Planning Board. Committee on Population Social Trends. 1 map black line ; 83 x 116 cm Negative. "Iowa state plan." "Project no. 1048.". Iowa. State Planning Board.
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1930. Iowa. State Planning Board. Committee on Population & Social Trends. 1 map black line ; 72 x 110 cm Iowa state plan. "Project no. 1048.". Iowa. State Planning Board.
1919. (R. H. Fuller, 1919, Drainage Atlas of Palo Alto County, Iowa); 1 atlas: b&w.; 41 X 38 cm. Material in the public domain. No restrictions on use. S... R. H. Fuller.
1930. Iowa. State Planning Board. Committee on Water Flow & Supply & Stream Pollution. 1 map black line ; 83 x 114 cm Iowa state plan. "Project 1044." "1044-1.". Iowa. State Planning Board.
405. Dubuque
1904. Huebinger, M. (Melchior). Iowa Publishing Co.
1930. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Department of Agriculture and United States. Agricultural Stabilization and Conservation Service.
1940. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Department of Agriculture and United States. Agricultural Stabilization and Conservation Service.
1950. Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs... United States. Department of Agriculture. Production and Marketing Administration.
1950. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Commodity Stabilization Service.
1960. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Agricultural Stabilization and Conservation Service.