Παραπομπή σε μορφή APA (7η εκδ.)

Boas, A. J. (2001). Jerusalem in the time of the crusades: Society, landscape and art in the Holy City under Frankish rule. Routledge.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Boas, Adrian J. Jerusalem in the Time of the Crusades: Society, Landscape and Art in the Holy City Under Frankish Rule. London: Routledge, 2001.

Παραπομπή σε μορφή MLA (8th εκδ.)

Boas, Adrian J. Jerusalem in the Time of the Crusades: Society, Landscape and Art in the Holy City Under Frankish Rule. Routledge, 2001.