APA (7th ed.) Citation

Tuchman, B. W. (1967). The proud tower: A portrait of the world before the war, 1890-1914. Bantam Books.

Chicago Style (17th ed.) Citation

Tuchman, Barbara W. The Proud Tower: A Portrait of the World Before the War, 1890-1914. New York: Bantam Books, 1967.

MLA (9th ed.) Citation

Tuchman, Barbara W. The Proud Tower: A Portrait of the World Before the War, 1890-1914. Bantam Books, 1967.