Ruff, W. (2019). Archivmaterialien zu Walter Ruff.
Chicago Style (17th ed.) CitationRuff, Walter. Archivmaterialien Zu Walter Ruff. 2019.
MLA (9th ed.) CitationRuff, Walter. Archivmaterialien Zu Walter Ruff. 2019.
Warning: These citations may not always be 100% accurate.