Dyfyniad APA

Mc Carthy, P. j., & Stephan, F. F. (1958). Sampling opinions: An analysis of survey procedure. John Wiley & Sons INC.

Dyfyniad Arddull Chicago

Mc Carthy, Philip j., and Frederick F. Stephan. Sampling Opinions: An Analysis of Survey Procedure. USA: John Wiley & Sons INC, 1958.

Dyfyniad MLA

Mc Carthy, Philip j., and Frederick F. Stephan. Sampling Opinions: An Analysis of Survey Procedure. John Wiley & Sons INC, 1958.

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