Telecommunications Primer.
Langley, G.
Telecommunications Primer. / G Langley. - New Delhi : Galgotia Publications Pvt. Ltd. ,1986. - viii,148p. :24cm.
HCL
;Telecommunication Primer
; G Langley
; HCL Collection.
621.38 LAN
Telecommunications Primer. / G Langley. - New Delhi : Galgotia Publications Pvt. Ltd. ,1986. - viii,148p. :24cm.
HCL
;Telecommunication Primer
; G Langley
; HCL Collection.
621.38 LAN