Darley, J. M., Glucksberg, S., & Kinchla, R. A. (1988). Psychology (Fourth edition.). Prentice-Hall, Inc.
Lua i Stíl Chicago (17ú heag.)Darley, John M., Sam Glucksberg, agus Ronald A. Kinchla. Psychology. Fourth edition. Englewood Cliffs, New Jersey: Prentice-Hall, Inc, 1988.
Lua MLA (9ú heag.)Darley, John M., et al. Psychology. Fourth edition. Prentice-Hall, Inc, 1988.
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