Dyfyniad APA
Simons, H. W., Gronbeck, B. E., & Morreale, J. (2001). Persuasion in society. Sage Publications.
Dyfyniad Arddull Chicago
Simons, Herbert W., Bruce E. Gronbeck, and Joanne Morreale. Persuasion in Society. Thousand Oaks, Calif.: Sage Publications, 2001.
Dyfyniad MLA
Simons, Herbert W., et al. Persuasion in Society. Sage Publications, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.