Pfund, H. W. (1944). A History of the German Society of Pennsylvania. German Society of Pennsylvania.
Chicago-Zitierstil (17. Ausg.)Pfund, Harry W. A History of the German Society of Pennsylvania. Philadelphia: German Society of Pennsylvania, 1944.
MLA-Zitierstil (8. Ausg.)Pfund, Harry W. A History of the German Society of Pennsylvania. German Society of Pennsylvania, 1944.
警告：这些引文格式不一定是100％准确.