00507nam a22001697a 4500 CEME 20210628203457.0 210316b xxu||||| |||| 00| 0 eng d . 621.382 WIN'T Winch, Robert G 65690 Telecommunication transmission system , microwave fiber optic mobile cellular radio data and digital multiplaxing NEWYORK MCGRAW HILL 1993 XII, 541P TELECOMMUNICATION 24437 BK ddc 573830 573830 0 0 0 0 CEME CEME GEN 2017-07-28 0 621.382 WIN'T CEME-28316 2021-06-28 2021-06-28 BK 0 0 0 0 CEME CEME GEN 2017-07-28 0 621.382 WIN'T CEME-28317 2021-06-28 2021-06-28 BK 0 0 0 0 CEME CEME GEN 2017-07-28 0 621.382 WIN'T CEME-28318 2021-06-28 2021-06-28 BK