APA (7th ed.) Citation

Van Creveld, M. L. (1971). 25 October 1940: A historical puzzle. Journal of contemporary history.

Chicago Style (17th ed.) Citation

Van Creveld, Martin L. "25 October 1940: A Historical Puzzle." Journal of Contemporary History 1971.

MLA (8th ed.) Citation

Van Creveld, Martin L. "25 October 1940: A Historical Puzzle." Journal of Contemporary History, 1971.

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