APA (7th ed.) Citation

Joyce, P. W. (2012). The Story of Ancient Irish Civilization. Project Gutenberg.

Chicago Style (17th ed.) Citation

Joyce, P. W. The Story of Ancient Irish Civilization. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Joyce, P. W. The Story of Ancient Irish Civilization. Project Gutenberg, 2012.

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