APA (7th ed.) Citation

Butler, E. P., & Preston, M. W. (2008). The Cheerful Smugglers. Project Gutenberg.

Chicago Style (17th ed.) Citation

Butler, Ellis Parker, and May Wilson Preston. The Cheerful Smugglers. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Butler, Ellis Parker, and May Wilson Preston. The Cheerful Smugglers. Project Gutenberg, 2008.

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