Flitner, Wilhelm <br/><br/>
Pedagogia Sistematica :    /  
Flitner, Wilhelm 
 - 1a ed. 
 - Buenos Aires ;   LABOR ,   1935 
 - 199 p. ;   18 cm. :    
<br/><br/><label>Subjects--Index Terms: </label>PEDAGOGIA 
<br/><br/><label>Universal Decimal Class. No.: </label>37