ISBN 0-671-22254-6* Joyce Milton, "Tramp: The Life of Charlie Chaplin"[http://books.google.com/books?id=FX2fkglUqZcC] - Da Capo Press, 1998.
ISBN 0-671-22254-6* Joyce Milton, "Tramp: The Life of Charlie Chaplin"[http://books.google.com/books?id=FX2fkglUqZcC] – Da Capo Press, 1998.