APA (7th ed.) Citation

Holmes, R. D. (2004). A Yankee in the Trenches. Project Gutenberg.

Chicago Style (17th ed.) Citation

Holmes, Robert Derby. A Yankee in the Trenches. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Holmes, Robert Derby. A Yankee in the Trenches. Project Gutenberg, 2004.

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