Breakwell,Glynis M. Hammond,Sean Fife-Schaw,Chris Smith,Jonathan A. (2006). Research methods in psychology (Third.). SAGE.
Lua i Stíl Chicago (17ú heag.)Breakwell,Glynis M. Hammond,Sean Fife-Schaw,Chris Smith,Jonathan A. Research Methods in Psychology. Third. London: SAGE, 2006.
Lua MLA (8ú heag.)Breakwell,Glynis M. Hammond,Sean Fife-Schaw,Chris Smith,Jonathan A. Research Methods in Psychology. Third. SAGE, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.