Dyfyniad APA

E D Tittel Steve James. (1995). ISDN networking essentials. AP proffessional.

Dyfyniad Arddull Chicago

E D Tittel Steve James. ISDN Networking Essentials. MA: AP proffessional, 1995.

Dyfyniad MLA

E D Tittel Steve James. ISDN Networking Essentials. AP proffessional, 1995.

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