APA (7th ed.) Citation

Barth, C. G. (1990). History of the Twentieth Aero Squadron: First Day Bombardment Group, First Pursuit Wing, Air Service, First Army, American Expeditionary Forces. Battery Press.

Chicago Style (17th ed.) Citation

Barth, C. G. History of the Twentieth Aero Squadron: First Day Bombardment Group, First Pursuit Wing, Air Service, First Army, American Expeditionary Forces. Nashville, Tenn.: Battery Press, 1990.

MLA (9th ed.) Citation

Barth, C. G. History of the Twentieth Aero Squadron: First Day Bombardment Group, First Pursuit Wing, Air Service, First Army, American Expeditionary Forces. Battery Press, 1990.