APA (7th ed.) Citation

Tracy, V., & Raleigh, H. (2011). "Persons Unknown". Project Gutenberg.

Chicago Style (17th ed.) Citation

Tracy, Virginia, and Henry Raleigh. "Persons Unknown". Project Gutenberg, 2011.

MLA (9th ed.) Citation

Tracy, Virginia, and Henry Raleigh. "Persons Unknown". Project Gutenberg, 2011.

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