APA استشهاد

Lopez, R. S., & Ramond, I. W. (1955). Medieval trade in the mediterranean world. Colombia University Press.

استشهاد بنمط شيكاغو

Lopez, Robert S., و Irving W. Ramond. Medieval Trade in the Mediterranean World. New York: Colombia University Press, 1955.

MLA استشهاد

Lopez, Robert S., و Irving W. Ramond. Medieval Trade in the Mediterranean World. Colombia University Press, 1955.