Abercrombie, David. <br/><br/>
Elements of General Phonetics /  

 - Reprinted 1980 /  
 - England :   Edinburgh University Press ,   1980 
 - p.203 :  
<br/><br/><label>ISBN: </label>0-85224-451-7 
<br/><br/><label>Dewey Class. No.: </label>P:1  / K7