Cita APA (7a ed.)

Pirenne, H. (1956). A history of Europe. Doubleday & Company.

Cita Chicago Style (17a ed.)

Pirenne, Henri. A History of Europe. Garden City, New York: Doubleday & Company, 1956.

Cita MLA (9a ed.)

Pirenne, Henri. A History of Europe. Doubleday & Company, 1956.