Jakobson, Roman. <br/><br/>
Child Language Aphasia and Phonological Universals /  

 - Reprinted 1980 /  
 - The Hague :   Mouton & Co. N.V. Publishers. 
 - p.101 :  
<br/><br/><label>ISBN: </label>90-279-2103-2 
<br/><br/><label>Dewey Class. No.: </label>P:1  / K8J;1