APA (7e ed.) Bronvermelding

Tuchmann, B. W. (1966). The proud tower: A portrait of the world before the war 1890-1914. Macmillan Company.

Chicago (17e ed.) Bronvermelding

Tuchmann, Bárbara W. The Proud Tower: A Portrait of the World Before the War 1890-1914. Nueva York: Macmillan Company, 1966.

MLA (9e ed.) Bronvermelding

Tuchmann, Bárbara W. The Proud Tower: A Portrait of the World Before the War 1890-1914. Macmillan Company, 1966.