International study of achievement in mathematics
Husen Torsten Ed.
International study of achievement in mathematics Husen Torsten Ed. - New York John Wiley 1967 - p. cm. - International project for the evaluation of educational achievement .
60915
Textual
Mathematics
B, K78.2
International study of achievement in mathematics Husen Torsten Ed. - New York John Wiley 1967 - p. cm. - International project for the evaluation of educational achievement .
60915
Textual
Mathematics
B, K78.2
