Elementary school mathematics.

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Philippines. University. Science Education Center
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	[Quezon City] 1973-
Eagrán:	Rev. experimental ed.
Ábhair:	Mathematics > Study and teaching (Elementary)