Heyneman Stephen P. etc. <br/><br/>
Text books and achievement    What we know 

 - Washington  World Bank U. S. A.     1978 
 - 34p. References : 32-34  cm. 
 - World Bank Staff Working Papers. 298. .
<br/><br/><label>Standard No.: </label>121693 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Education<br/>Educational Measurement
<br/><br/><label>Dewey Class. No.: </label>"T:520j2, L8/UN"