APA (7th ed.) Citation

Miller, L. (2010). The Haunted Sentry Box of Porto Rico. Project Gutenberg.

Chicago Style (17th ed.) Citation

Miller, Lewis. The Haunted Sentry Box of Porto Rico. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Miller, Lewis. The Haunted Sentry Box of Porto Rico. Project Gutenberg, 2010.

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