APA (7th ed.) Citation

Hemenway Hetty. (1918). Four days: The story of a war marriage. Little, Brown.

Chicago Style (17th ed.) Citation

Hemenway Hetty. Four Days: The Story of a War Marriage. Boston: Little, Brown, 1918.

MLA (9th ed.) Citation

Hemenway Hetty. Four Days: The Story of a War Marriage. Little, Brown, 1918.