000			00319nam a2200133Ia 4500
008			160930s9999 xx 000 0 und d
020			_a9789380027814
100			_aKatiyar,Sapna
245			_aOptical Communication
250			_a2012
260			_aNew Delhi _bS.K.Katiar & Sons _c0
300			_a482p.;24cm
942			_cDB
999			_c9335 _d9335