"At the Pentagon". Donald Rumsfeld's speech at the news conference on the collapse of Saddam Hussein's government, the remaining resistance in Iraq and other subjects at the Pentagon in Arlington County, Virginia, www.nytimes.com. April 10, 2003.
Letter to Sir Norman Bottomley on March 29, 1945. "Bomber Harris: The Story of Marshal of the Royal Air Force Sir Arthur Harris". Book by Dudley Saward, p. 294, 1985.