参考文献:
1. Otto von Bismarck <war and armaments in europe>
2. Kaiser Whihelm II <address to German people>
3. Winston Churchill <blood, toil, sweat, tears>
4. Winston Churchill <report the miracle of Dunkirk>
5. Joseph Stalin <the radio address>
6. Charles de Gaulle <has the last word been said?>
7. Charles de Gaulle <V-E day broadcast to the French people>