APA (7th ed.) Citation

Sassoon, S. (2014). The War Poems. Project Gutenberg.

Chicago Style (17th ed.) Citation

Sassoon, Siegfried. The War Poems. Project Gutenberg, 2014.

MLA (9th ed.) Citation

Sassoon, Siegfried. The War Poems. Project Gutenberg, 2014.

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