APA aipamena

Fowler, F. J. (2009). Survey research methods (4th ed.). Sage Publications.

Chicago Style aipamena

Fowler, Floyd J. Survey Research Methods. 4th ed. Thousand Oaks: Sage Publications, 2009.

MLA aipamena

Fowler, Floyd J. Survey Research Methods. 4th ed. Sage Publications, 2009.