APA (7th ed.) Citation

Project Gutenberg & Gibbon, E. (2008). History of the Decline and Fall of the Roman Empire; Volume 1. Project Gutenberg Literary Archive Foundation.

Chicago Style (17th ed.) Citation

Project Gutenberg and Edward Gibbon. History of the Decline and Fall of the Roman Empire; Volume 1. Salt Lake City: Project Gutenberg Literary Archive Foundation, 2008.

MLA (9th ed.) Citation

Project Gutenberg and Edward Gibbon. History of the Decline and Fall of the Roman Empire; Volume 1. Project Gutenberg Literary Archive Foundation, 2008.

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