Viebrock, H. Archivmaterialien zu Helmut Viebrock, 1912-1997.
Chicago Style (17th ed.) CitationViebrock, Helmut. Archivmaterialien Zu Helmut Viebrock, 1912-1997.
MLA (9th ed.) CitationViebrock, Helmut. Archivmaterialien Zu Helmut Viebrock, 1912-1997.
Warning: These citations may not always be 100% accurate.