000			00463nam a2200181Ia 4500
005			20240821153434.0
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040			_aUPES LIBRARY
082			_a535.89 _bPOW
100			_aPowers, John _9148092
245			_aIntroduction to fiber optics systems
250			_a2nd ed.
260			_aNew Delhi : _bTata McGraw Hill, _c2010
300			_a340p.
650			_aFiber optic _9744876
650			_aPhysics
942			_cBK
999			_c4506 _d4506