books.google.de - Drawing on vast new data that reveal Americans' changing behavior, Putnam shows how we have become increasingly disconnected from one another and how social structures—whether they be PTA, church, or political parties—have disintegrated. Until the publication of this groundbreaking work, no one had...http://books.google.de/books/about/Bowling_Alone.html?hl=de&id=rd2ibodep7UC&utm_source=gb-gplus-shareBowling Alone
