Dyfyniad APA
Arens, W., David Schaefer, & Michael Weigold. (2015). Advertising (2nd ed.). McGraw-Hill Education.
Dyfyniad Arddull Chicago
Arens, William, David Schaefer, and Michael Weigold. Advertising. 2nd ed. New York, NY: McGraw-Hill Education, 2015.
Dyfyniad MLA
Arens, William, et al. Advertising. 2nd ed. McGraw-Hill Education, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.