Chicago Tribune Tower

1. Sabbah, Catherine (2003): Le Chicago Tribune. Dernier des Mohicans. In: Le Moniteur des Travaux Publics et du Bâtiment, n. 5176 (7 February 2003), pp. 78.
2. Dupré, Judith (1996): Skyscrapers. Black Dog & Loventhal, New York (USA), pp. 30-31.
3. Dupré, Judith / Smith, Adrian (2008): Skyscrapers. A History of the World's Most Extraordinary Buildings. 2^nd edition, Black Dog & Leventhal Publishers, Inc., New York (USA), ISBN 978-1-57912-787-9, pp. 32-33.