Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Fowler, Floyd J. Survey Research Methods. 4th ed. Los Angeles: Sage, 2009.

Cita MLA (9th ed.)

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