The dollar of the middle ages.

MLA

Lopez, Roberto Sabatino. The Dollar of the Middle Ages. New York: New York university press, 1951.

APA

Lopez, R. Sabatino. (1951). The dollar of the middle ages. New York: New York university press.

Chicago

Lopez, Roberto Sabatino, The Dollar of the Middle Ages. New York: New York university press, 1951.