Dyfyniad APA

Fowler, F. J., & Floyd J. Fowler; Jr. Survey research methods. Thousand Oaks, Calif: Sage Publications.

Dyfyniad Arddull Chicago

Fowler, Floyd J., và Floyd J. Fowler; Jr. Survey Research Methods. Thousand Oaks, Calif: Sage Publications.

Dyfyniad MLA

Fowler, Floyd J., và Floyd J. Fowler; Jr. Survey Research Methods. Thousand Oaks, Calif: Sage Publications.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.