000 00301nam a2200121Ia 4500
008 220201s1993 xx 000 0 eng d
082 _a4.6
_bBEA
100 _aBearpark
245 0 _aComputer communication :business perspective
260 _aLondon
_bMcgraw Hill
_c1993
300 _a224
942 _2ddc
999 _c34832
_d34832