Morris, C. G., & Maisto, A. A. (2008). Understanding psychology (Eight edition, mypsylab edition.). Pearson/Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Morris, Charles G., agus Albert A. Maisto. Understanding Psychology. Eight edition, mypsylab edition. Upper Saddle River, New Jersey: Pearson/Prentice Hall, 2008.
Lua MLA (9ú heag.)Morris, Charles G., agus Albert A. Maisto. Understanding Psychology. Eight edition, mypsylab edition. Pearson/Prentice Hall, 2008.
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