Παραπομπή σε μορφή APA (7η εκδ.)

Leopold, A. (2000). How to recover the Holy Land: The crusade proposals of the late thirteenth and early fourteenth centuries. Ashgate.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Leopold, Antony. How to Recover the Holy Land: The Crusade Proposals of the Late Thirteenth and Early Fourteenth Centuries. Aldershot, England Burlington, VT: Ashgate, 2000.

Παραπομπή σε μορφή MLA (8th εκδ.)

Leopold, Antony. How to Recover the Holy Land: The Crusade Proposals of the Late Thirteenth and Early Fourteenth Centuries. Ashgate, 2000.