International study of achievement in mathematics a comparison of twelve countries

Bibliographic Details
Main Author:	Husen, Torsten 1916-
Corporate Author:	International Project for the Evaluation of Educational Achievement
Format:	Book
Language:	English
Published:	Stockholm, New York Almqvist & Wiksell Wiley c[1967]
Subjects:	Mathematical ability. Mathematics > Study and teaching (Secondary) Comparative education.