Laubach, Frank C  <br/><br/>
Thirty years with the silent billion 

 - 1 ed. 
 - London :   Lutterworth Press,   c1960 
 - 383 p 
<br/><br/> First eight chapters published in 1943 as "The silent billion speak" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>alfabetismo<br/>silent billion speak, the
<br/><br/><label>Dewey Class. No.: </label>371.3000 L36