Husen Torsten Ed. <br/><br/>
International study of achievement in mathematics 
Husen Torsten Ed. 
 - New York       John Wiley         1967 
 - p.  cm. 
 - International project for the evaluation of educational achievement .
<br/><br/><label>Standard No.: </label>60915 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B, K78.2