Gattegno, Caleb. <br/><br/>
Words in colour :    background and principles /  
Caleb Gattegno. 
 - Reading :    Educational Explorers,    1962. 
 - iii, 81 p. :    ill. ;    10 x 19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Reading -- Color aids.
<br/><br/><label>Dewey Class. No.: </label>372.41 GAT