1930. Iowa. State Planning Board. Committee on Land Utilization. 1 map ; black line; 84 x 116 cm Iowa state plan.; "Project no. 1030.". Iowa. State Planning Board.
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1930. 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 and United States. Agricultural Stabilization and Conservation Service.
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.
1930. 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 and United States. Agricultural Stabilization and Conservation Service.
1930. 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 and United States. Agricultural Stabilization and Conservation Service.
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.
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.
1930. Iowa. State Planning Board. 1 map black line ; 83 x 115 cm Negative. "Iowa state plan.". Iowa. State Planning Board.
1930. Iowa. State Planning Board. 1 map ; black line; 84 x 116 cm Iowa state plan. Iowa. State Planning Board.
1930. Iowa. State Planning Board. Business Research Committee and Bowen, Howard R. (Howard Rothmann), 1908-1989. 60 pages illustrations ; 28 cm. Iowa. State Planning Board.