00385nam a2200133Ia 4500008004100000041000800041082001600049100002100065245007100086250000600157260005100163300000800214650002900222210716s1990    xx            000 0 und d  aeng  a004.21 SHOB  aShorrock, Brian.  aSystems design and hci: a practical handbook.bPractical handbook.  a1  aNew DelhibGalgotia Publications Pvt Ltdc1990  a217  aSystem Analysis & Design