Cita APA (7th ed.)
Punch, K. (2003). Survey research: The basics. Sage Publications.
Cita Chicago (17th ed.)
Punch, Keith. Survey Research: The Basics. London ; Thousand Oaks, CA: Sage Publications, 2003.
Cita MLA (9th ed.)
Punch, Keith. Survey Research: The Basics. Sage Publications, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.