APA (7th ed.) Citation

Le Queux, W. (2009). Hushed Up! A Mystery of London. Project Gutenberg.

Chicago Style (17th ed.) Citation

Le Queux, William. Hushed Up! A Mystery of London. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Le Queux, William. Hushed Up! A Mystery of London. Project Gutenberg, 2009.

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