Woodruff, William. <br/><br/>
The struggle for world power 1500-1980 / 
William Woodruff. 
 - London :  MacMillan ,  1981. 
 - xvi, 371 p. :  ill., maps ;  23 cm. 
<br/><br/> Includes bibliographical references (p. 336-342) and index. 
<br/><br/><label>ISBN: </label>0333290879 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Balance of power.<br/>World politics.