Նորմալ դիտում MARC դիտում ISBD Դիտում

A world of differences : An international assessment of mathematics and science / Archie Lapointe; Nancy A Mead; Gary W Phillips - Princeton, N.J. : Educational Testing Service, 1989. - 95 p. illustrations (some color) ; 26 sm. - Center for the Assessment of Educational Progress .

Subjects--Topical Terms:
Mathematical ability