eat War: Combat, Morale and Collapse in the German and British armies, 1914–1918. Cambridge Military Histories. New York: Cambridge University Press. ISBN 0-52188-101-3.
- Wilkinson, R. (2006). Pals on the Somme 1916. Barnsley: Pen & Sword. ISBN 1-84415-393-2. OCLC 64746633.
- van Hartsveldt, Fred R. (1996). The Battles of the Somme: Historiography and Annotated Bibliography. London and Westport, Conn.: Greenwood Press. ISBN 0-313-29386-4.
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