000 00350nam a2200145Ia 4500
100 _aLANGLEY GRAHAM
650 _aTelecommunications
365 _cRS
365 _d1
942 _cENGBK
654 _aTelecommunication system
245 _aTelecommunications Primer
260 _bGalgotia Publication Pvt Ltd
_c1984
_aNew Delhi
300 _aVIII+148PP
999 _c5592
_d5592