APA (7th ed.) Citation

Koenen, L. (2019). Archivmaterialien zu Ludwig Koenen, 1931-2023.

Chicago Style (17th ed.) Citation

Koenen, Ludwig. Archivmaterialien Zu Ludwig Koenen, 1931-2023. 2019.

MLA (8th ed.) Citation

Koenen, Ludwig. Archivmaterialien Zu Ludwig Koenen, 1931-2023. 2019.

Warning: These citations may not always be 100% accurate.