Dyfyniad APA
Smith, A., & Wempen, F. (2012). CompTIA strata study guide. John Wiley.
Dyfyniad Arddull Chicago
Smith, Andrew, and Faithe Wempen. CompTIA Strata Study Guide. Chichester, West Sussex: John Wiley, 2012.
Dyfyniad MLA
Smith, Andrew, and Faithe Wempen. CompTIA Strata Study Guide. John Wiley, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.