Trask R. L. <br/><br/>
Why do languages change? 

 - Cambridge  Cambridge University Press UK       2010 
 - xi, 198p.  cm. 
<br/><br/><label>ISBN: </label>9780521546935 (pbk)  1284.46 
<br/><br/><label>Standard No.: </label>103921 
<br/><br/><label>Source: </label> 718, 23/11/2010, Bhagwati Book Seller  Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LINGUISTICS
<br/><br/><label>Dewey Class. No.: </label>P111, Q0