Mark A. Kishlansky,ed., Sources of World History ,New York,Harper Collins,1995,pp. 298-302;http://www.historyguide.org/europe/churchill.html. VscN6vTa5ndwb1mq4KWp7rYFzLIoeBbtbBXOnaM2kCrRSsLkM4p7MXzu5I4JNH6J