Sax, Gilbert <br/><br/>
Principles of educational measurement and evaluation 

 - California  Wadsworth Publishers  1974 
 - 642p. 
<br/><br/><label>ISBN: </label> USD 24.95 
<br/><br/><label>Source: </label> USD 24.95 
<br/><br/><label>Dewey Class. No.: </label>371.2 SAX