Language change :  contributions to the study of its causes / 
edited by Leiv Egil Breivik and Ernst Hakon Jahr. 
 - Berlin :  Mouton de Gruyter,  1989. 
 - 281 p. ;  24 cm. 
<br/><br/>p. 272-276. 
<br/><br/><label>ISBN: </label>0899255647 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Linguistic change.