Sperling, A. P. (1982). Psychology made simple. Heinemann Proffessional Publishing.
Lua i Stíl Chicago (17ú heag.)Sperling, Abraham P. Psychology Made Simple. Oxford: Heinemann Proffessional Publishing, 1982.
Lua MLA (9ú heag.)Sperling, Abraham P. Psychology Made Simple. Heinemann Proffessional Publishing, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.