DAVIDOFF, L. L. (1987). Introduction to psychology.-- Ed.3. Mcgraw-Hill Book.
Lua i Stíl Chicago (17ú heag.)DAVIDOFF, Linda L. Introduction to Psychology.-- Ed.3. New York: Mcgraw-Hill Book, 1987.
Lua MLA (9ú heag.)DAVIDOFF, Linda L. Introduction to Psychology.-- Ed.3. Mcgraw-Hill Book, 1987.
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