00700nam a22002297a 4500 SNU 20140709110656.0 140709b xxu||||| |||| 00| 0 eng d 9780139027000 HCL 621.385 CHO Dimitris N Chorafas Telephony : today and tomorrow / Dimitris N Chorafas Englewood Cliffs, N.J. : Prentice-Hall , ©1984. xii, 292 p. : ill. ; 23 cm. Telecommunication -- Technological innovations. Telephone -- Technological innovations. Telephone systems. Dimitris N Chorafas. Electrical. ddc HCL 14816 14816 1 0 ddc 0 0 SNUL SNUL 2014-07-09 0 621.385 CHO H7630 2014-07-09 00:00:00 2014-07-09 HCL