Why density? 

 - Vitoria-Gasteiz  a+t Architecture Publisher  2015 
 - 255p. 
<br/><br/><label>ISBN: </label>9788460657514 
<br/><br/><label>Subjects--Topical Terms: </label><br/>URBAN PLANNING AND DESIGN (AR-UPD)
<br/><br/><label>Dewey Class. No.: </label>711.13  / A+T