000			00341nam a22001577a 4500
999			_c44439 _d44439
003			OSt
020			_a9789380027814
082			_a621.3827 KAT-O
100			_aKatiyar, Sapna
245			_aOptical Communication
250			_a4th
260			_aNew Delhi _bS K Kataria & Sons _c2015
300			_a486p.
901			_a29169
942			_2ddc _cBK