Morris, C. G. (1988). Psychology: An introduction (6ª ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Morris, Charles G. Psychology: An Introduction. 6ª ed. Prentice Hall, 1988.
Lua MLA (9ú heag.)Morris, Charles G. Psychology: An Introduction. 6ª ed. Prentice Hall, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.