Frieling, H. (2019). Archivmaterialien zu Heinrich Frieling, 1910-1996.
Chicago Style (17th ed.) CitationFrieling, Heinrich. Archivmaterialien Zu Heinrich Frieling, 1910-1996. 2019.
MLA引文Frieling, Heinrich. Archivmaterialien Zu Heinrich Frieling, 1910-1996. 2019.
警告:這些引文格式不一定是100%准確.