00655nam a2200253Ia 4500 170711s9999 xx 000 0 und d 9780809094738 302.24 Su958 2009 Sunstein, Cass R. On rumors : how falsehoods spread, why we believe them, what can be done / by Cass R. Sunstein. First edition. New York : Farrar, Straus and Giroux, 2009 100 pages : illustrations ; 20cm. Rumor. Social psychology. Title. 340025 340025