Cita APA (7a ed.)

Loud, G. A. (2016). The crusade of Frederick Barbarossa: The history of the expedition of the Emperor Frederick and related texts. Routledge.

Cita Chicago Style (17a ed.)

Loud, G. A. The Crusade of Frederick Barbarossa: The History of the Expedition of the Emperor Frederick and Related Texts. London, [England] ; New York, New York: Routledge, 2016.

Cita MLA (9a ed.)

Loud, G. A. The Crusade of Frederick Barbarossa: The History of the Expedition of the Emperor Frederick and Related Texts. Routledge, 2016.