00378nam a2200157Ia 4500008004000000020001500040041000800055082001800063100001800081245003000099260004100129300001200170650001000182650001000192650001800202210210b2010   xxu||||| |||| 00| 0 eng d  a8121923174  aeng  a621.3692 AGAF  aAGARWAL (D C)  aFibre optic communication  aNew DelhibS. Chand & Co. Ltd.c2010  axvi,428  aoptic  aFibre  acommunication