00321nam a2200121Ia 4500008004100000041000800041082002000049100001600069245004500085260003800130300002400168365000700192240624s9999    xx            000 0 und d  aeng  a658.4038011 STA  aSTAIR RALPH  aPRINCIPLES OF INFORMATION SYSTEMS A MANA  c2011aNew DelhibCengage Learning  a664 : p. : cm. ; 24  cRS