Schonell, Fred J <br/><br/>
Backwardness in the Basic Subjects 

 - 4. revised edition 
 - London :  Oliver and Boyd,  1942 
 - xix-566p.;  21,50 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pedagogía<br/>Niños anormales
<br/><br/><label>Universal Decimal Class. No.: </label>371.91/92