APA (7th ed.) Citation

Lopez, R. S. (1976). The commercial revolution of the Middle Ages, 950-1350. Cambridge University Press.

Chicago Style (17th ed.) Citation

Lopez, Robert Sabatino. The Commercial Revolution of the Middle Ages, 950-1350. Cambridge [Eng.], New York: Cambridge University Press, 1976.

MLA (9th ed.) Citation

Lopez, Robert Sabatino. The Commercial Revolution of the Middle Ages, 950-1350. Cambridge University Press, 1976.