Spuler, Bertold <br/><br/>
Rulers and government of the world  1492 to 1929 

 - London  Bowker  1972 
 - xvii, 779p.; 22cm. 
<br/><br/><label>ISBN: </label>859350096 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliography - world history<br/>Cabinet system<br/>Kings and rulers