APA (7th ed.) Citation

(2008). The Martyr of the Catacombs A Tale of Ancient Rome. Project Gutenberg.

Chicago Style (17th ed.) Citation

The Martyr of the Catacombs A Tale of Ancient Rome. Project Gutenberg, 2008.

MLA (9th ed.) Citation

The Martyr of the Catacombs A Tale of Ancient Rome. Project Gutenberg, 2008.

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