Alreck, P. L., & Settle, R. B. (2004). The survey research handbook (3rd ed.). Boston: McGraw-Hill/Irwin.
Chicago Style CitationAlreck, Pamela L., i Robert B. Settle. The Survey Research Handbook. 3rd ed. Boston: McGraw-Hill/Irwin, 2004.
Cita MLAAlreck, Pamela L., i Robert B. Settle. The Survey Research Handbook. 3rd ed. Boston: McGraw-Hill/Irwin, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.