00277nam a2200109Ia 4500008004100000040002500041082002000066100002300086245004100109260000900150300000800159230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a346.59902 D3777  aDe Leon, Hector S. 4aThe Law of Obligations and Contracts  c2021  a453