CHORAFAS, D. N. (1984). TELELPHONY: TODAY AND TOMORROW. PRENTICE - HALL.
Chicago Style aipamenaCHORAFAS, D. N. TELELPHONY: TODAY AND TOMORROW. ENGLEWOOD: PRENTICE - HALL, 1984.
MLA aipamenaCHORAFAS, D. N. TELELPHONY: TODAY AND TOMORROW. PRENTICE - HALL, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.