APA (7th ed.) Citation

Fenn, G. M. (2008). The Dark House A Knot Unravelled. Project Gutenberg.

Chicago Style (17th ed.) Citation

Fenn, George Manville. The Dark House A Knot Unravelled. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Fenn, George Manville. The Dark House A Knot Unravelled. Project Gutenberg, 2008.

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