International study of achievement in mathematics.

Detalles Bibliográficos
Autor Principal:	Husen, Torsten 1916-
Autor Corporativo:	International Project for the Evaluation of Educational Achievement
Formato:	Libro
Publicado:	Stockholm, New York Almqvist & Wiksell Wiley [1967].
Subjects:	Mathematical ability. Mathematics > Study and teaching (Secondary) Comparative education.