Pobresa, escoles i crims en un mapa de Chicago <a href="http://www.chicagomag.com/Chicago-Magazine/The-312/June-2012/The-Geography-of-Chicago-Schools-Homicides-and-Poverty/">http://www.chicagomag.com/Chicago-Magazine/The-312/June-2012/The-Geography-of-Chicago-Schools-Homicides-and-Poverty/</a><br>
<br>Raf<br>