000 00346nam a2200133Ia 4500
008 150331s1984 xx 000 0 und d
100 _aSingh, A.
245 _aPrinciples of Communication Engineering
250 _a1 st
260 _aNew Delhi
_bS.Chand & Company Pvt.Ltd.
_c1984
300 _a662
700 _aChhabra, A.K.
942 _2ddc
_cBK
_01
999 _c1855
_d1855