APA (7th ed.) Citation

Ficker, G., & Hermelink, H. Das Mittelalter.

Chicago Style (17th ed.) Citation

Ficker, Gerhard, and Heinrich Hermelink. Das Mittelalter.

MLA (9th ed.) Citation

Ficker, Gerhard, and Heinrich Hermelink. Das Mittelalter.

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