Russell, J., & Gauntlett, L. &. P. (2022). Psychology For Cambridge International AS & A Level Workbook (2nd.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Russell, Julia, agus Lizzie & Papaconstantinou Gauntlett. Psychology For Cambridge International AS & A Level Workbook. 2nd. London: Cambridge University Press, 2022.
Lua MLA (9ú heag.)Russell, Julia, agus Lizzie & Papaconstantinou Gauntlett. Psychology For Cambridge International AS & A Level Workbook. 2nd. Cambridge University Press, 2022.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.