Cita APA

Pirenne, H., & Clegg,I. E.. (1937). Economic and social history of medieval europe. New York: Harcourt Brace.

Citación estilo Chicago

Pirenne, Henri, y Clegg,I. E. Economic and Social History of Medieval Europe. New York: Harcourt Brace, 1937.

Cita MLA

Pirenne, Henri, y Clegg,I. E. Economic and Social History of Medieval Europe. New York: Harcourt Brace, 1937.