Aitchison, Jean <br/><br/>
The seeds of speech: language origin and evolution 

 - Cambridge  Cambridge University Press  1996 
 - xii,282p.  22cm. 
<br/><br/><label>ISBN: </label>051785715 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages
<br/><br/><label>LC Class. No.: </label>P11.A38