00346nam a2200121Ia 4500008004100000040002500041082001400066100002500080245004900105250002000154260004200174300000800216230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a371.3 G86  aGregorio, Herman C.  0aPrinciples and practices of college teaching  aRevised Edition  bR. P. Garcia Publishing Companyc1983  a340