00326nam a2200133Ia 4500100002500000650001800025250000600043366000700049245005100056260003500107082001800142300000800160546002400168  aLathi/B.P/ Ding/Zhi   aCommunication  a4  f25  aModern digial and analog communication systems  bOxford  university pressc2008  a621.3804bLAT  a903  aENGLISHcPAMPHALETS