References
- Wilson , M. C. 1927 . Influence of Bulletins, News Stories, and Circular Letters upon Farm Practice Adoption with Particular Reference to Methods of Bulletin Distribution , Washington, D.C. : U.S. Department of Agriculture . Extension Circular 57
- Wilson , M. C. 1928 . Distributions of Bulletins and Their Use by Farmers , Washington, D.C. : U.S. Department of Agriculture . Extension Circular 78
- Wilson , M. C. and Gallup , Gladys . 1955 . Extension Teaching Methods and Other Factors That Influence Adoption of Agricultural and Home Economics Practices , Washington, D.C. : U.S. Department of Agriculture . Federal Extension Service Circular 495
- Kollmorgen , Walter M. 1941 . “The German‐Swiss in Franklin County, Tennessee : a Study of the Significance of Cultural Considerations in Farming Enterprise.” . Washington, D.C. : U.S. Department of Agriculture . BAE Bulletin
- Hoffer , Charles R. 1942 . Acceptance of Approved Farming Practices among Farmers of Dutch Descent , Special Bulletin 316 East Lansing, Michigan : Agricultural Experiment Station, Michigan State University .
- Ryan , Bryce and Gross , Neal C. 1943 . “The Diffusion of Hybrid Seed Corn in Two Iowa Communities,” . Rural Sociology , 8 March : 15 – 24 .
- Rogers , Everett M. The Diffusion of Innovations , New York : Free Press . In press
- 1955 . How Farm People Accept New Ideas , Special Report 15 Ames, Iowa : Agricultural Extension Service, Iowa State College .
- Rogers , Everett M. 1958 . “Categorizing the Adopters of Agricultural Practices,” . Rural Sociology , 23 December : 345 – 54 .
- van den Ban , A. W. 1961 . “Research in the Field of Advisory Work,” . Netherlands Journal of Agricultural Service , 9 May : 122 – 33 .