Von Vorys, K. (1925). New nations: The problems of political development. The American Academy of Political and Social Science.
Chicago-viite (17. p.)Von Vorys, Karl. New Nations: The Problems of Political Development. Philadelphia: The American Academy of Political and Social Science, 1925.
MLA-viite (9. p.)Von Vorys, Karl. New Nations: The Problems of Political Development. The American Academy of Political and Social Science, 1925.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.