Murhammer, M. W. (1998). A guide to virtual private networks. New Jersey : Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Murhammer, Martin W. A Guide to Virtual Private Networks. New Jersey : Prentice Hall, 1998.
Lua MLA (9ú heag.)Murhammer, Martin W. A Guide to Virtual Private Networks. New Jersey : Prentice Hall, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.