APA (7th ed.) Citation

Heck, P. Archivmaterialien zu Philipp Heck, 1858-1943.

Chicago Style (17th ed.) Citation

Heck, Philipp. Archivmaterialien Zu Philipp Heck, 1858-1943.

MLA (9th ed.) Citation

Heck, Philipp. Archivmaterialien Zu Philipp Heck, 1858-1943.

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