000 00302nam a2200133Ia 4500
020 _a0074624563
100 _aHerbert Taub
245 _aPrinciples of communication systems
250 _a2nd
260 _c2001
_bTata McGraw
_aNew Delhi
300 _a759
700 _aDonald L Schilling
942 _cBK
999 _c28180
_d28180