APA (7th ed.) Citation

Froest, F. (2007). The Grell Mystery. Project Gutenberg.

Chicago Style (17th ed.) Citation

Froest, Frank. The Grell Mystery. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Froest, Frank. The Grell Mystery. Project Gutenberg, 2007.

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