00412nam a2200169Ia 4500 210723s9999||||xx |||||||||||||| ||und|| NULL 23779 621.382 KEI Keiser, Gerd Optical Fiber Communications - Boston McGraw Hill International Book Company 0 Codes , Systems , Types BK 23779 23779 0 0 0 0 BCD MCASCP MCASCP 2005-08-23 - 0 621.382/KEI/Z/192 100000192 2021-07-24 00:00:00 2021-07-24 BK Electronic Science 0 0 0 0 BCD MCASCP MCASCP 2005-08-23 - 0 621.382/KEI/Z/193 100000193 2021-07-24 00:00:00 2021-07-24 BK Electronic Science