00311nam a2200109Ia 4500008004100000040002500041082001900066100004300085245002700128260003700155300000900192230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a 371.307'8 L96  aLucide, Paz I. and Milagros L.  Borabo 0aEducational technology  bKATHA PUBLISHING CO., INC.c1997  a91p.