000			00442pam a2200157a 44500
008			140414b1993 xxu||||| |||| 00| 0 eng d
082			_aD65,4 _bKES
100			_aKESSLER, GARY C
245			_aISDN _bConcepts Facilities and Services _c
250			_a2 Ed.
260			_aDelhi _bMcGraw-Hill _c1993
650			_a ISDN
650			_aINTEGRATED SERVICES DIGITAL NETWORKS
690			_aELECTRONICS AND COMMUNICATION ENGINEERING
906			_a17266
999			_c16684 _d16684