Dyfyniad APA

 Andrews, J. (2014).  A+ guide to managing and maintaining your PC.  Course Technology.

Dyfyniad Arddull Chicago

 Andrews, Jean.  A+ Guide to Managing and Maintaining Your PC.  Course Technology, 2014.

Dyfyniad MLA

 Andrews, Jean.  A+ Guide to Managing and Maintaining Your PC.  Course Technology, 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.