00409nam a2200145Ia 4500008004100000020001800041041000800059082001600067100002100083245004100104250000700145260006100152300001900213650003100232210716s2009    xx            000 0 und d  a9780070589711  aeng  a003.54 OBRJ  aObrien, James A.  aIntroduction to information systems.  a12  aNew DelhibTata McGraw Hill Publishing Company Ltdc2009  axxx,452,R8,I22  aInformation Theory(003.54)