Lessing, J. (2019). Archivmaterialien zu Julius Lessing, 1843-1908.
芝加哥风格引文Lessing, Julius. Archivmaterialien Zu Julius Lessing, 1843-1908. 2019.
MLA引文Lessing, Julius. Archivmaterialien Zu Julius Lessing, 1843-1908. 2019.
警告：这些引文格式不一定是100％准确.
APA引文