Allen, B. P. (2000). Personality theories: Development, growth, and diversity (3rd ed.). Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Allen, Bem P. Personality Theories: Development, Growth, and Diversity. 3rd ed. Boston: Allyn and Bacon, 2000.
Lua MLA (9ú heag.)Allen, Bem P. Personality Theories: Development, Growth, and Diversity. 3rd ed. Allyn and Bacon, 2000.
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