APA (7th ed.) Citation

Ptak, R. (2019). Archivmaterialien zu Ralf Ptak, 1960-.

Chicago Style (17th ed.) Citation

Ptak, Ralf. Archivmaterialien Zu Ralf Ptak, 1960-. 2019.

MLA (8th ed.) Citation

Ptak, Ralf. Archivmaterialien Zu Ralf Ptak, 1960-. 2019.

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