APA (7th ed.) Citation

Upward, A. (2009). The International Spy Being the Secret History of the Russo-Japanese War. Project Gutenberg.

Chicago Style (17th ed.) Citation

Upward, Allen. The International Spy Being the Secret History of the Russo-Japanese War. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Upward, Allen. The International Spy Being the Secret History of the Russo-Japanese War. Project Gutenberg, 2009.

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