APA (7th ed.) Citation

Newman, J. H. (2009). Callista: A Tale of the Third Century. Project Gutenberg.

Chicago Style (17th ed.) Citation

Newman, John Henry. Callista: A Tale of the Third Century. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Newman, John Henry. Callista: A Tale of the Third Century. Project Gutenberg, 2009.

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