APA (7th ed.) Citation

(2018). World War I battlefield companion. American Battle Monuments Commission.

Chicago Style (17th ed.) Citation

World War I Battlefield Companion. Arlington, VA: American Battle Monuments Commission, 2018.

MLA (9th ed.) Citation

World War I Battlefield Companion. American Battle Monuments Commission, 2018.

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