APA aipamena

Punch, K. F. (2003). Survey research: The basics. Sage Publications.

Chicago Style aipamena

Punch, Keith F. Survey Research: The Basics. London: Sage Publications, 2003.

MLA aipamena

Punch, Keith F. Survey Research: The Basics. Sage Publications, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.