Dyfyniad APA
Geddes, B., Knibbe, W., Wimpsett, K., & Zeidel, D. (2014). Advanced Google AdWords (Third edition.). Wiley.
Dyfyniad Arddull Chicago
Geddes, Brad, Willem Knibbe, Kim Wimpsett, and Dassi Zeidel. Advanced Google AdWords. Third edition. Indianapolis, Indiana: Wiley, 2014.
Dyfyniad MLA
Geddes, Brad, et al. Advanced Google AdWords. Third edition. Wiley, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.