APA (7th ed.) Citation

Keene, J. D. (2000). The United States and the First World War. Longman.

Chicago Style (17th ed.) Citation

Keene, Jennifer D. The United States and the First World War. Harlow, England ; New York: Longman, 2000.

MLA (9th ed.) Citation

Keene, Jennifer D. The United States and the First World War. Longman, 2000.