APA (7th ed.) Citation

Doyle, A. C. (1994). The Lost World. Project Gutenberg.

Chicago Style (17th ed.) Citation

Doyle, Arthur Conan. The Lost World. Project Gutenberg, 1994.

MLA (9th ed.) Citation

Doyle, Arthur Conan. The Lost World. Project Gutenberg, 1994.

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