00582nam a2200193Ia 4500008004100000020001500041082000800056100002500064245006300089250000600152260002800158300001800186500002400204650001600228700003000244942000700274952009000281999001700371230524s9999    xx            000 0 und d  a8170085612  bKUM  aI. Ravi Kumar942718 0aPrinciples of Optical Communication and Opto - Electronics  a1  aNew DelhibLaxmi Publi.  a"XVIII,301p;"  aQuantity Number:  1  aElectronics  a N.Bala Saraswathi942719  cBK  00104070aTATCLbTATCLcGENd2023-05-24l0o KUMp54066r2023-05-24w2023-05-24yBK  c57702d57702