1. Bok, D. C. & Dunlop, J. T.,Labor and the American Community. New York: Simon and Schuster, 1970.
2. Brayfield, A. H. & Crockett, W. H., Employee Attitudes and Performance.Psychological Bulletin, 1955, 52, 396–428.
3. Calder, B. J. & Ross, M., Attitudes: Theories and Issues. In Thibault, J. T.; Spence, R. C. & Carson, R. C. (eds.)Contemporary Topics in Social Psychology. Morristown, New Jersey: General Learning Press, 1976.
4. Davis, J. A.,General Social Surveys, 1972–1978: Cumulative Data (machine-read data file). Chicago: National Opinion Research Center, 1978, a.
5. Davis, J. A.,General Social Surveys, 1972–1978: Cumulative Codebook. Chicago: National Opinion Research Center, 1978, b.