Dyfyniad APA

DeVito, J. A. (1993). Messages: Building interpersonal communication skills (2nd.ed.). Harper Collins.

Dyfyniad Arddull Chicago

DeVito, Joseph A. Messages: Building Interpersonal Communication Skills. 2nd.ed. New York: Harper Collins, 1993.

Dyfyniad MLA

DeVito, Joseph A. Messages: Building Interpersonal Communication Skills. 2nd.ed. Harper Collins, 1993.

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