Jessel, Levic <br/><br/>
The ethnic process  an evoluationary concept of languages and people 
Levic Jessel 
 - The Hague  Mouton Pub.  1978 
 - 275p. 24cm 
<br/><br/>Bibliography: p.255-259 
<br/><br/><label>ISBN: </label>9027976031 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anthropological linguistics<br/>Sociolinguistics