00302nam a2200109Ia 4500008004100000040002500041082001200066100003400078245003900112260003300151300000800184230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a512 D37  aDel Rosario, Bernardo Jr. G.  0aApplied algebra : Berzen approach   bNation Book Store,Inc.c1991  a271