APA (7th ed.) Citation

Kingsley, C. (1998). The Ancien Régime. Project Gutenberg.

Chicago Style (17th ed.) Citation

Kingsley, Charles. The Ancien Régime. Project Gutenberg, 1998.

MLA (9th ed.) Citation

Kingsley, Charles. The Ancien Régime. Project Gutenberg, 1998.

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