APA (7th ed.) Citation

Ptak, R. (2019). Archivmaterialien zu Roderich Ptak, 1955-.

Chicago Style (17th ed.) Citation

Ptak, Roderich. Archivmaterialien Zu Roderich Ptak, 1955-. 2019.

MLA (9th ed.) Citation

Ptak, Roderich. Archivmaterialien Zu Roderich Ptak, 1955-. 2019.

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