APA (7th ed.) Citation

Gerdes, E. W. (2019). Archivmaterialien zu Egon W. Gerdes, 1932-2020.

Chicago Style (17th ed.) Citation

Gerdes, Egon W. Archivmaterialien Zu Egon W. Gerdes, 1932-2020. 2019.

MLA (8th ed.) Citation

Gerdes, Egon W. Archivmaterialien Zu Egon W. Gerdes, 1932-2020. 2019.

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