000 00743cam a2200205 4500
001 u33823
003 SIRSI
008 211102s1990 000 0
020 _a0580182908
082 _a004.66
110 _aBritish Standards Institution (BSI)
_9249825
245 _aBS 7267 : 1990 (ISO/IEC TR 10029 : 1989). Open systems interconnection : guide to operation of an X.25 interworking unit
260 _bBritish Standards Institution (BSI),
_c1990
650 _aTelecommunications
_9329904
654 _aComputers, computer science and information technology
654 _aElectronics, telecommunications
999 _c74374
_d74374
650 _aTechnical standards
_9334365
650 _aComputer communications
_9336816
650 _aOpen systems
_9336817