000 00276nam a2200109Ia 4500
008 220201s1993 xx 000 0 eng d
100 _aRONAYNE, JOHN
245 0 _aINTEGRATED SERVICES DIGITAL NETWORK ISDN
260 _aDELHI
_bWHEELER PUB
_c1993
300 _a230
942 _2ddc
999 _c66985
_d66985