John,Patrick and Christopher, David <br/><br/>
Encyclopaedia of Language and Linguistics. Vol.6 

 - New Delhi  Commonwealth Publishers  2010 
 - v, 276p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pk
<br/><br/><label>Dewey Class. No.: </label>Pk  / O.6