Bischof, L. J., Holtzman, W. H., & Murphy, G. (1970). Interpreting personality theories (2nd edition.). Harper & Row.
Cita Chicago (17th ed.)Bischof, Ledford J., Wayne H. Holtzman, i Gardner Murphy. Interpreting Personality Theories. 2nd edition. New York: Harper & Row, 1970.
Cita MLA (9th ed.)Bischof, Ledford J., et al. Interpreting Personality Theories. 2nd edition. Harper & Row, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.