00277nam a2200109Ia 4500008004100000040002500041082001200066100003200078245004000110260000900150300000800159230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a515 B46  aBesavilla, Venancio I. Jr.  0aDifferential and integral calculus   c1992  a449