Dyfyniad APA
Dover, D., & Dafforn, E. (2011). Search engine optimization (SEO) secrets: Do what you never though possible with SEO. Wiley Pub., Inc..
Dyfyniad Arddull Chicago
Dover, Danny, and Erik Dafforn. Search Engine Optimization (SEO) Secrets: Do What You Never Though Possible with SEO. Indianapolis, Ind.: Wiley Pub., Inc., 2011.
Dyfyniad MLA
Dover, Danny, and Erik Dafforn. Search Engine Optimization (SEO) Secrets: Do What You Never Though Possible with SEO. Wiley Pub., Inc., 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.