00286nam a2200109Ia 4500008004100000022001700041040002500058082001800083100002600101245002200127260002700149240215s9999    xx            000 0 und d  a981-243-156x  aNORSU-DumcNORSU-Dum  a004/P25n/2002  aParsons, June Jamrich 0aComputer Concepts  bThomson Learningc2002