000 00564nam a2200193Ia 4500
001 6312
008 140320s9999 xx 000 0 und d
020 _a0-07-114430-7
040 _cPK-LaUMT
082 _a 004.6
_bKES-I
100 _aKessler, Gary C.
245 _aISDN : concepts, facilities, and services
_cKessler, Gary C.<>Southwick, Peter V., Jt. Auth.
260 _aNew Delhi,India:
_bMcGraw-Hill,
_c1997.
300 _a672 p.
546 _aEN
650 _aIntegrated services digital networks
700 _aSouthwick, Peter V., Jt. Auth.
942 _cBK
999 _c7906
_d7906