APA (7th ed.) Citation

Clayton, E. C. (2011). The World Turned Upside Down. Project Gutenberg.

Chicago Style (17th ed.) Citation

Clayton, E. C. The World Turned Upside Down. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Clayton, E. C. The World Turned Upside Down. Project Gutenberg, 2011.

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