00310nam a2200109Ia 4500008004100000040002500041082001400066100002600080245005000106260003600156300000800192230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a371.3 Aq5  aAquino, Gaudencio V.  0aPrinciples and methods of effective teaching   bNational Book Store, Inc.c1988  a627