APA (7th ed.) Zitazioa
May, T. (2011). Social research: Issues, methods and process (4th ed.). McGraw Hill.
Chicago Style (17th ed.) Zitazioa
May, Tim. Social Research: Issues, Methods and Process. 4th ed. Maidenhead, England: McGraw Hill, 2011.
MLA (9th ed.) Zitazioa
May, Tim. Social Research: Issues, Methods and Process. 4th ed. McGraw Hill, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.