Darley, J. M., Glucksberg, S., & Kinchla, R. A. (1988). Psychology (4th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Darley, John M., Sam Glucksberg, agus Ronald A. Kinchla. Psychology. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1988.
Lua MLA (9ú heag.)Darley, John M., et al. Psychology. 4th ed. Prentice-Hall, 1988.
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