Frege, C. A. Archivmaterialien zu Christian August Frege, 1759-1834.
芝加哥风格引文Frege, Christian August. Archivmaterialien Zu Christian August Frege, 1759-1834.
MLA引文Frege, Christian August. Archivmaterialien Zu Christian August Frege, 1759-1834.
警告：这些引文格式不一定是100％准确.