000 00333nam a2200157Ia 4500
100 _aAgarwal, D C
080 _a621.380414
526 _dTB
526 _aUG
366 _f20%
942 _cBK
245 _aFibre optic communication
260 _aS. Chand & company Pvt. Ltd.
_bNew Delhi
_c2013
300 _aix,428
546 _aE
999 _c52762
_d52762