"El Ingenioso Hidalgo Don Quijote de la Mancha (The Ingenious Nobleman Sir Quixote of La Mancha)". Book by Miguel de Cervantes (Part I, Chapter 25), 1612.
"Vera Farmiga, Director Adam Rodgers and Writer Glenn German Talk AT MIDDLETON, Challenges of the Indie Film, and the Farmiga Sisters’ On-Screen Relationship". collider.com. January 28, 2014.
Winston Churchill's statement as President of the Air Council in War Office Departmental Minute (the original document is in the collection of Churchill Papers 16/16 at the Churchill Archives Centre in Cambridge), May 12, 1919.