000 00238nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aTAUB, SAHA,
245 0 _aPRINCIPAL OF COMMUNICATION SYSTEM
260 _bMCGRAWHILL
942 _2ddc
_cMTECH
999 _c2933
_d2933