APA引文

Haekel, J. (2019). Archivmaterialien zu Josef Haekel, 1907-1973.

Chicago Style (17th ed.) Citation

Haekel, Josef. Archivmaterialien Zu Josef Haekel, 1907-1973. 2019.

MLA引文

Haekel, Josef. Archivmaterialien Zu Josef Haekel, 1907-1973. 2019.

警告：這些引文格式不一定是100％准確.