- Siegfried Sassoon. Counter-Attack and Other Poems. London: William Heinemann, 1918.
- "World War One: Killed, wounded, and missing." Britannica. Accessed 20 July 2023. <https://www.britannica.com/event/World-War-I/Killed-wounded-and-missing>.
- Edgar McD. Shawen. "Sassoon's Attack." The Explicator. 9 July 2010. Accessed 20 July 2023. <https://www.tandfonline.com/doi/abs/10.1080/00144940.1983.9939386?journalCode=vexp20>.
- "Trench Warfare." The National WW1 Museum and Memorial. Accessed 20 July 2023. <https://www.theworldwar.org/learn/about-wwi/trench-warfare>.