Von Vorys, K. (1925). New nations: The problems of political development. The American Academy of Political and Social Science.
芝加哥风格引文Von Vorys, Karl. New Nations: The Problems of Political Development. Philadelphia: The American Academy of Political and Social Science, 1925.
MLA引文Von Vorys, Karl. New Nations: The Problems of Political Development. The American Academy of Political and Social Science, 1925.
警告：这些引文格式不一定是100％准确.