APA (7th ed.) Citation

Machen, A. (2011). The Secret Glory. Project Gutenberg.

Chicago Style (17th ed.) Citation

Machen, Arthur. The Secret Glory. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Machen, Arthur. The Secret Glory. Project Gutenberg, 2011.

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