APA (7th ed.) Citation

Shackleton, R. (1991). The Second World War. The Historical Association.

Chicago Style (17th ed.) Citation

Shackleton, Richard. The Second World War. London: The Historical Association, 1991.

MLA (8th ed.) Citation

Shackleton, Richard. The Second World War. The Historical Association, 1991.

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