Wessels, T. Archivmaterialien zu Theodor Wessels, 1902-1972.
芝加哥风格引文Wessels, Theodor. Archivmaterialien Zu Theodor Wessels, 1902-1972.
MLA引文Wessels, Theodor. Archivmaterialien Zu Theodor Wessels, 1902-1972.
警告：这些引文格式不一定是100％准确.
APA引文