Burger, J. M. (1997). Personality (4th ed.). Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)Burger, Jerry M. Personality. 4th ed. Pacific Grove: Brooks/Cole, 1997.
Lua MLA (9ú heag.)Burger, Jerry M. Personality. 4th ed. Brooks/Cole, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.