APA (7th ed.) Citation

Kay, R., & Wrenn, C. L. (2007). Fighting in France. Project Gutenberg.

Chicago Style (17th ed.) Citation

Kay, Ross, and Charles L. Wrenn. Fighting in France. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Kay, Ross, and Charles L. Wrenn. Fighting in France. Project Gutenberg, 2007.

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