Rudy Giuliani's speech at the MSNBC's Republican first presidential candidates debate at the Ronald Reagan Library in Simi Valley, California, www.nytimes.com. May 3, 2007.
Linus Pauling, Barbara Marinacci (1995). “Linus Pauling in His Own Words: Selections From His Writings, Speeches and Interviews”, p.163, Simon and Schuster
"The speech that was the start of the end of David Cameron". David Cameron's speech on a "Britain in a reformed Europe" at Bloomsberg's London headquarters, www.independent.co.uk. January 2013.