APA (7th ed.) Citation

Friedrich I. Heiliges Römisches Reich, K., & Loud, G. A. (2013). The crusade of Frederick Barbarossa: The history of the expedition of the emperor Frederick and related texts. Crusade texts in translation.

Chicago Style (17th ed.) Citation

Friedrich I. Heiliges Römisches Reich, Kaiser, and G. A. Loud. "The Crusade of Frederick Barbarossa: The History of the Expedition of the Emperor Frederick and Related Texts." Crusade Texts in Translation 2013.

MLA (9th ed.) Citation

Friedrich I. Heiliges Römisches Reich, Kaiser, and G. A. Loud. "The Crusade of Frederick Barbarossa: The History of the Expedition of the Emperor Frederick and Related Texts." Crusade Texts in Translation, 2013.

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