- http://history.howstuffworks.com/world-war-ii/historical-introduction-to-world-war-ii4.htmhttp://www.bbc.co.uk/schools/gcsebitesize/history/mwh/ir1/chamberlainandappeasementrev1.shtml
- http://www.britannica.com/EBchecked/topic/104904/Neville-Chamberlain
- http://www.johndclare.net/EII3.htm
- http://www.historyonthenet.com/WW2/causes.htm
- http://history.howstuffworks.com/world-war-ii/historical-introduction-to-world-war-ii4.htm