Lewis D G <br/><br/>
Statistical methods in education 

 - London  1967 
 - 198p.  cm. 
<br/><br/><label>Standard No.: </label>26204 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B280bT, K7