APA (7th ed.) Citation

Bordeaux, H., Roosevelt, T., & Sill, L. M. (2006). Georges Guynemer: Knight of the Air. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bordeaux, Henry, Theodore Roosevelt, and Louise Morgan Sill. Georges Guynemer: Knight of the Air. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Bordeaux, Henry, et al. Georges Guynemer: Knight of the Air. Project Gutenberg, 2006.

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