Hans Henrich Hock <br/><br/>
Principles of Historical Linguistics 

 - Berlin, New York  Mouton de Gruyter  1991 
 - Trends in Linguistics- Studies and Monograph  Volume 34 .
<br/><br/><label>ISBN: </label>978-3-11-012962-5 
<br/><br/><label>Dewey Class. No.: </label>417.7HOCP