Cita APA (7a ed.)
Tuchman, B. (1966). The Proud tower: A portrait of the world before the war 1890-1914. Macmillan.
Cita Chicago Style (17a ed.)
Tuchman, Barbar. The Proud Tower: A Portrait of the World Before the War 1890-1914. New York: Macmillan, 1966.
Cita MLA (9a ed.)
Tuchman, Barbar. The Proud Tower: A Portrait of the World Before the War 1890-1914. Macmillan, 1966.
Precaución: Estas citas no son 100% exactas.