00495nam a2200145Ia 4500008004100000040002500041082001200066100005000078245005100128260003600179300000800215942000700223952010400230999001500334230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a370 G86  aGregorio, Herman C.  and Cornelia M. Gregorio 0aPrinciples of elementary- secondary education   bR.P. Publishing Co., Inc.c1989  a244  cBK  00104070aNORSU-SiabNORSU-SiacFILd2023-07-03l0oFIL 370 G86p1604r2023-07-03w2023-07-03yBK  c1471d1471