00257nam a2200121Ia 4500100001500000650001800015250000600033654001200039245002600051260002500077082002100102546001200123  aKatre/J.S   aCommunication  a2  adigital  aDigital communication  bTech-MaxaPunec2004  a621.382/KATbKAT  aENGLISH