1. The Rural Sociology of Advanced Societies;Buttel,1980
2. The adoption and continued use of consumer farm technologies: a test of a diffusion-farm structure model;Comboni,1984
3. Eroding Soils: The Off-Farm Impacts;Clark,1985
4. Coefficient alpha and the internal structure of tests;Cronbach;Psychometrics,1951
5. New perspectives on soil conservation policy;Crosson;J. Soil Water Conserv.,1984