Robins, R.H.. <br/><br/>
General Linguistics /  

 - Fourth Ed. /  
 - Harlow :   Longman Group UK Ltd. ,   1967 
 - p445 :  
<br/><br/><label>ISBN: </label>0-582-29144-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Linguistics
<br/><br/><label>Dewey Class. No.: </label>P  / M9