000 00317nam a2200121Ia 4500
008 220201s2001 xx 000 0 eng d
082 _a621.381
_bSHA
100 _aShanmugham, a
245 0 _aComputer communication calion
260 _aNew Delhi
_bLearning Materials Centre ISTE
_c2001
300 _a615
942 _2ddc
999 _c28378
_d28378