Principles of political geography / 
by Hans Werner Weigert ... [et al.] 
 - New York :  Appleton-Century-Crofts,  c1957 
 - xiv, 723 p. :  maps ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 8.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geopolitics
<br/><br/><label>Dewey Class. No.: </label>320.12