Encyclopedia of educational research 

 - 4th 
 -  1969 
<br/><br/><label>Standard No.: </label>20784 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/> ENCYCLOPEDIAS AND DICTIONARIES<br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>Tk, K0;K9-;1(RR)