Der moderne staat / 
edited by Richard Bartlsperger, Hans Boldt and Dieter C. Umbach. 
 - Mannheim  Bibliographisches Institut,  1974. 
 - 748 p. : 
<br/><br/><label>ISBN: </label>CGS2082 
<br/><br/><label>Dewey Class. No.: </label>320.943  / De