Letras, números e incógnitas 

 -  Vervuert Verlagsgesellschaft  2017 
<br/><br/><label>ISBN: </label>9783954875962 
<br/><br/><label>Source: </label>Ebook 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Linguistics and Semiotics