Wortman, C. B., & Loftus, E. F. ,. E. (1992). Psychology (4th ed.). McGraw hill.
Cita Chicago (17th ed.)Wortman, Camille B., i Elizabeth F. ,Marshall,Mary E. Loftus. Psychology. 4th ed. New York: McGraw hill, 1992.
Cita MLA (9th ed.)Wortman, Camille B., i Elizabeth F. ,Marshall,Mary E. Loftus. Psychology. 4th ed. McGraw hill, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.