APA (7th ed.) Citation

Joll, J. (1991). 1914: The unspoken assumptions. The outbreak of World War I.

Chicago Style (17th ed.) Citation

Joll, James. "1914: The Unspoken Assumptions." The Outbreak of World War I 1991.

MLA (8th ed.) Citation

Joll, James. "1914: The Unspoken Assumptions." The Outbreak of World War I, 1991.

Warning: These citations may not always be 100% accurate.