00633nam a2200169 a 450000500170000000800410001702000150005802000150007324500370008826000670012530000160019244000510020850000860025965000580034565000490040385200110045220200107025743.0080115s19uu    xx            00    eng d  a9715400502  a971540110410aScience and technology textbook.0 aDiliman, Q.C :bInstructional Materials Corporation,c1989-92.  a4 v. : ill. 0aSecondary education development program series  aContents.--v.1 First Year.--v.2. Second Year.--v.3. Third Year.--v.4. Fourth Year  aSciencexStudy and teaching (Secondary)xPhilippines.  aTechnologyxStudy and teachingxPhilippines.  7OLOPSC