Elementary school science 2 things change

מידע ביבליוגרפי
מחבר תאגידי:	Curriculum Development Center for Science and mathematics, Science Education Center
פורמט:	ספר
שפה:	English
יצא לאור:	Manila Department of Education and Culture, Republic of the Philippines c1977a.
נושאים:	Science > Problems, questions, exercises. Science > Study and teaching.