Cita APA (7a ed.)
Keck, D. (1998). Angels & angelology in the Middle Ages. Oxford University Press.
Cita Chicago Style (17a ed.)
Keck, David. Angels & Angelology in the Middle Ages. New York: Oxford University Press, 1998.
Cita MLA (9a ed.)
Keck, David. Angels & Angelology in the Middle Ages. Oxford University Press, 1998.
Precaución: Estas citas no son 100% exactas.