000 00293nam a22001337a 4500
999 _c1356
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020 _a9788126513864
082 _a621.382
100 _aGovind P Agrawal
245 _afiber optic communication systems
250 _a3rd
260 _aNew Delhi
_bWiley
_c2011
300 _a546
942 _cBK
_01