APA (7th ed.) Citation

Doyle, A. C. (2005). The Poison Belt. Project Gutenberg.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan. The Poison Belt. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Doyle, Arthur Conan. The Poison Belt. Project Gutenberg, 2005.

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