Dyfyniad APA

Stephenson, H. (1971). Handbook of public relations: The standard guide to public affairs and communications (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Stephenson, Howard. Handbook of Public Relations: The Standard Guide to Public Affairs and Communications. 2nd ed. New York: McGraw-Hill, 1971.

Dyfyniad MLA

Stephenson, Howard. Handbook of Public Relations: The Standard Guide to Public Affairs and Communications. 2nd ed. McGraw-Hill, 1971.

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