APA (7th ed.) Citation

Heckel, E. Archivmaterialien zu Erich Heckel, 1883-1970.

Chicago Style (17th ed.) Citation

Heckel, Erich. Archivmaterialien Zu Erich Heckel, 1883-1970.

MLA (9th ed.) Citation

Heckel, Erich. Archivmaterialien Zu Erich Heckel, 1883-1970.

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