APA (7th ed.) Citation

Gibbs, P. (2004). The Soul of the War. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gibbs, Philip. The Soul of the War. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Gibbs, Philip. The Soul of the War. Project Gutenberg, 2004.

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