APA (7th ed.) Citation

Crocker, H. W. (2014). The Yanks are coming!: A military history of the United States in World War I. Regnery History.

Chicago Style (17th ed.) Citation

Crocker, H. W. The Yanks Are Coming!: A Military History of the United States in World War I. Washington, DC: Regnery History, 2014.

MLA (9th ed.) Citation

Crocker, H. W. The Yanks Are Coming!: A Military History of the United States in World War I. Regnery History, 2014.