I 48.944 
Fay,Sidney Bradshaw: The Qri,gin~ of the wor1d war. 
(Repr. ) V01.1.2. -New York:Macmi11an 1929. SO 

1.Before Sarajevo:Underlying causes of the war. 
X\nI S.,2 Bl.)551 S.,8 Taf. . 
2.After Sarajevo: Irmnediate causes of the war. 
~.,2 ßl. J 577 5.)1 l.nl. J 8 Taf. . 
[29.41072