Fehr, L. A. (1983). Introduction to personality. Macmillan.
Lua i Stíl Chicago (17ú heag.)Fehr, Lawrence A. Introduction to Personality. New York: Macmillan, 1983.
Lua MLA (9ú heag.)Fehr, Lawrence A. Introduction to Personality. Macmillan, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.