Cornell, Francis G. <br/><br/>
The essentials of educational estatistics /  
Francis G. Cornell 
 - New York :   John Wiley and Sons, London :   Chapman & Hall,   1956 
 - vii,375 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ESTADISTICA<br/>ESTADISTICAS EDUCATIVAS<br/>MODELO EDUCACIONAL
<br/><br/><label>Universal Decimal Class. No.: </label>31