Oral practice 

 - Tokyo  Kokusai Gakuyu Kai      1969 
 - 138+127p.  cm. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Standard No.: </label>2,695 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>P42,9, K9.1-.2