APA (7th ed.) Citation

Doyle, A. C. (2013). The German War Some Sidelights and Reflections. Project Gutenberg.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan. The German War Some Sidelights and Reflections. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Doyle, Arthur Conan. The German War Some Sidelights and Reflections. Project Gutenberg, 2013.

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