Plotnik, R. (1993). Introduction to psychology (3rd ed.). Brooks/Cole Pub. Co.
Lua i Stíl Chicago (17ú heag.)Plotnik, Rod. Introduction to Psychology. 3rd ed. Pacific Grove, Calif: Brooks/Cole Pub. Co, 1993.
Lua MLA (9ú heag.)Plotnik, Rod. Introduction to Psychology. 3rd ed. Brooks/Cole Pub. Co, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.