APA (7th ed.) Citation

Doyle, A. C. (2005). The Adventure of the Dying Detective. Project Gutenberg.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan. The Adventure of the Dying Detective. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Doyle, Arthur Conan. The Adventure of the Dying Detective. Project Gutenberg, 2005.

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