Stein, Leopold,  1893- <br/><br/>
The infancy of speech and the speech of infancy / 
by Leopold Stein 
 - London :  Methuen,  1949 
 - 209 p. :  ill. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages--Origin