APA (7th ed.) Citation

Montgomery, H. B. (2009). The Empire of the East. Project Gutenberg.

Chicago Style (17th ed.) Citation

Montgomery, H. B. The Empire of the East. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Montgomery, H. B. The Empire of the East. Project Gutenberg, 2009.

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