Cita APA (7a ed.)
Williams, R. L. (1972). A short history of Europe since Napoleon. John Willey.
Cita Chicago Style (17a ed.)
Williams, Roger Lawrence. A Short History of Europe Since Napoleon. New York: John Willey, 1972.
Cita MLA (9a ed.)
Williams, Roger Lawrence. A Short History of Europe Since Napoleon. John Willey, 1972.
Precaución: Estas citas no son 100% exactas.