Dyfyniad APA

(1991). Investigating Communication An Introduction To Research Methodes Lawrence R. Frey ... [et Al.]. Prentice-Hall.

Dyfyniad Arddull Chicago

Investigating Communication An Introduction To Research Methodes Lawrence R. Frey ... [et Al.]. Prentice-Hall, 1991.

Dyfyniad MLA

Investigating Communication An Introduction To Research Methodes Lawrence R. Frey ... [et Al.]. Prentice-Hall, 1991.

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