May, T. (1997). Social research: Issues, methods and process (2nd ed.). Buckingham: Open University Press.
Chicago Style aipamenaMay, Tim. Social Research: Issues, Methods and Process. 2nd ed. Buckingham: Open University Press, 1997.
MLA aipamenaMay, Tim. Social Research: Issues, Methods and Process. 2nd ed. Buckingham: Open University Press, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.