- London :  Groom Helm,  1977. 
 - 131 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>0874718724 
<br/><br/><label>Subjects--Topical Terms: </label><br/>European war--Causes--1914 - 1918--Congresses.<br/>Strategy--Congresses.