APA (7th ed.) Citation

Snell, R. J. (2013). The Firebug. Project Gutenberg.

Chicago Style (17th ed.) Citation

Snell, Roy J. The Firebug. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Snell, Roy J. The Firebug. Project Gutenberg, 2013.

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