The Integrated Services Digital Network (ISDN).
Lane,John.
The Integrated Services Digital Network (ISDN). / John Lane. - England : NCC Publication ,1987. - 122p. :24cm.
0850125669
HCL
;The Integrated Services Digital Network
; ISDN
; Lane, John.
; HCL Collection.
004.6 LAN
The Integrated Services Digital Network (ISDN). / John Lane. - England : NCC Publication ,1987. - 122p. :24cm.
0850125669
HCL
;The Integrated Services Digital Network
; ISDN
; Lane, John.
; HCL Collection.
004.6 LAN