00804nam a22002417a 4500 SNU 20140721220037.0 140721b xxu||||| |||| 00| 0 eng d 9780895121660 HCL 621.38 CAN Cannon, Don L ; Luecke, Gerald ; Texas Instruments Information Publishing Center ; Battle, Charles W. Understanding communications systems / Don L Cannon; Gerald Luecke; Texas Instruments Information Publishing Center : 2nd ed Indianapolis, IN, USA : H.W. Sams , ©1984. iv, 284 p. : ill. (some col.) ; 23 cm. Telecommunication. Don L. Cannon Electric Signal Radio Communication ddc HCL 16043 16043 0 0 ddc 0 0 SNUL SNUL 2014-07-21 0 621.38 CAN H9658 2014-07-21 00:00:00 2014-07-21 HCL