APA (7th ed.) Citation

Voynich, E. L. (2002). The Gadfly. Project Gutenberg.

Chicago Style (17th ed.) Citation

Voynich, E. L. The Gadfly. Project Gutenberg, 2002.

MLA (9th ed.) Citation

Voynich, E. L. The Gadfly. Project Gutenberg, 2002.

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