Lua APA (7ú heag.)

CHORAFAS, D. N. TELEPHONY TODAY & TOMORROW. PRENTICE - HALL.

Lua i Stíl Chicago (17ú heag.)

CHORAFAS, D. N. TELEPHONY TODAY & TOMORROW. ENGLEWOOD: PRENTICE - HALL.

Lua MLA (9ú heag.)

CHORAFAS, D. N. TELEPHONY TODAY & TOMORROW. PRENTICE - HALL.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.