Dyfyniad APA

 Stallings, W. (2017).  Network security essentials: Applications and standards.  Pearson.

Dyfyniad Arddull Chicago

 Stallings, William.  Network Security Essentials: Applications and Standards.  Pearson, 2017.

Dyfyniad MLA

 Stallings, William.  Network Security Essentials: Applications and Standards.  Pearson, 2017.

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