000 00300nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aHerbert Taub
245 _aPrincipal of Communication System
260 _bDelhi:tata Mcgraw hill
_c1996
300 _a759p.
650 _aMangement
999 _c662
_d662