De Boer, Bart <br/><br/>
The origins of vowel systems 
Bart de Boer 
 - Oxford  Oxford University Press  2001 
 - xii, 168 p. : ill. ; 24 cm 
<br/><br/> Includes bibliographical references (p. [145]-153) and index 
<br/><br/><label>ISBN: </label>9780198299660 
<br/><br/><label>ISSN: </label>2001032859 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages - Origin<br/>Linguistic universals<br/>Typology (Linguistics)<br/>Vowels
<br/><br/><label>Dewey Class. No.: </label>414 BOE