Παραπομπή σε μορφή APA (7η εκδ.)

ProQuest (Firm) & Henning, J. (2007). Post-Roman towns, trade and settlement in Europe and Byzantium. W. de Gruyter.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ProQuest (Firm) και Joachim Henning. Post-Roman Towns, Trade and Settlement in Europe and Byzantium. Berlin ; New York: W. de Gruyter, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

ProQuest (Firm) και Joachim Henning. Post-Roman Towns, Trade and Settlement in Europe and Byzantium. W. de Gruyter, 2007.