APA (7th ed.) Citation

Horne, C. F. (2003). The Great Events by Famous Historians, Volume 21 The Recent Days (1910-1914). Project Gutenberg.

Chicago Style (17th ed.) Citation

Horne, Charles F. The Great Events by Famous Historians, Volume 21 The Recent Days (1910-1914). Project Gutenberg, 2003.

MLA (9th ed.) Citation

Horne, Charles F. The Great Events by Famous Historians, Volume 21 The Recent Days (1910-1914). Project Gutenberg, 2003.

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