APA (7th ed.) Citation

Hopf, A. (2019). Archivmaterialien zu Adolf Hopf.

Chicago Style (17th ed.) Citation

Hopf, Adolf. Archivmaterialien Zu Adolf Hopf. 2019.

MLA (9th ed.) Citation

Hopf, Adolf. Archivmaterialien Zu Adolf Hopf. 2019.

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