000			00321nam a2200121Ia 4500
008			190829s9999||||xx |||||||||||||| ||und||
020			_a9780074519417
100			_aSharma, N.
245		0	_aFibre Optics In Telecommunication
260			_bTata Mcgraw-Hill _aNew Delhi _c1987
650			_aTelecommunication
942			_cBK
999			_c11002 _d11002