00256nam a2200109Ia 4500008004100000040002500041082001900066100001900085245002500104260000900129300000800138230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a650.01513 Ab17  aAbao, Zenon R. 0aBusiness Mathematics  c2017  a191