Breakwell, G. M. (2006). Research methods in psychology (3rd ed.). Sage Publications.
Chicago Style aipamenaBreakwell, Glynis M. Research Methods in Psychology. 3rd ed. Los Angels: Sage Publications, 2006.
MLA aipamenaBreakwell, Glynis M. Research Methods in Psychology. 3rd ed. Sage Publications, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.