00289nam a22001097a 4500020001500000082001600015100002000031245005800051250000800109260005400117300000800171  a8120308824  a621.382/SEN  aSenior, John M.  aOptical Fiber Communications: Principles and Practice  a2nd  aNew DelhibPrentice Hall Of India Pvt. Ltd.c2000  a921