APA (7th ed.) Citation

Keerl, P. F. Archivmaterialien zu Philipp Friedrich Keerl, 1805-1895.

Chicago Style (17th ed.) Citation

Keerl, Philipp Friedrich. Archivmaterialien Zu Philipp Friedrich Keerl, 1805-1895.

MLA (9th ed.) Citation

Keerl, Philipp Friedrich. Archivmaterialien Zu Philipp Friedrich Keerl, 1805-1895.

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