1. Economic history of the production of beef cattle in Iowa Creator: Hopkins, John A. 1897- Collection: Core Historical Literature of Agriculture Publisher: The State Historical Society of Iowa, Publication Place: Iowa City : Date: 1928 Format: Book
2. Farm children: an investigation of rural child life in selected areas of Iowa Creator: Baldwin, Bird T. 1875-1928. Collection: Core Historical Literature of Agriculture Publisher: D. Appleton and Company, Publication Place: London : Date: 1930 Format: Book
3. The agricultural emergency in Iowa Creator: Iowa State University. Collection: Core Historical Literature of Agriculture Publisher: Collegiate Press, Publication Place: Ames : Date: 1933 Format: Book
4. Soils: their formation and classification. Creator: Thompson, Louis M. Collection: Core Historical Literature of Agriculture Publisher: Wm. C. Brown, Publication Place: Dubuque, Iowa : Date: 1949 Format: Book