1. Barton, A. (1969). Measuring the values of individuals. In Dean, D. G. (ed.),Dynamic Social Psychology, Random House, New York, pp. 319–367.
2. Bell, R. R. (1963).Marriage and Family Interaction, rev. ed., Dorsey Press, Homewood, Ill.
3. Bolton, C. D., and Kammeyer, K. C. (1967).The University Student, College and University Press, New Haven, Conn.
4. Blau, P. M. (1964).Exchange and Power in Social Life, Wiley, New York.
5. Christensen, H. T. (1950).Marriage Analysis, Ronald Press, New York.