Trask, R. L <br/><br/>
Why do languages change? 
R.L. Trask ; revised by Robert McColl Millar 
 - 1st ed 
 - Cambridge  Cambridge University Press  2010 
 - xi, 198 p. : ill. ; 24 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780521838023 
<br/><br/><label>ISSN: </label>2010292914 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language - History
<br/><br/><label>Dewey Class. No.: </label>420.9 TRA