Ruch, J. C. Psychology the personal science. Wadsworth.
Lua i Stíl Chicago (17ú heag.)Ruch, John C. Psychology the Personal Science. Wadsworth.
Lua MLA (8ú heag.)Ruch, John C. Psychology the Personal Science. Wadsworth.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.