APA (7th ed.) Citation

Yeats, W. B. (2010). Ideas of Good and Evil. Project Gutenberg.

Chicago Style (17th ed.) Citation

Yeats, W. B. Ideas of Good and Evil. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Yeats, W. B. Ideas of Good and Evil. Project Gutenberg, 2010.

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