APA (7th ed.) Citation

Yeats, W. B. (2012). Poems. Project Gutenberg.

Chicago Style (17th ed.) Citation

Yeats, W. B. Poems. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Yeats, W. B. Poems. Project Gutenberg, 2012.

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