APA (7th ed.) Citation

Machen, A. (2008). The House of Souls. Project Gutenberg.

Chicago Style (17th ed.) Citation

Machen, Arthur. The House of Souls. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Machen, Arthur. The House of Souls. Project Gutenberg, 2008.

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