APA (7th ed.) Citation

Howard, M. (2007). The First World War: A very short introduction. Oxford University Press. https://doi.org/10.1093/actrade/9780199205592.001.0001

Chicago Style (17th ed.) Citation

Howard, Michael. The First World War: A Very Short Introduction. Oxford: Oxford University Press, 2007. https://doi.org/10.1093/actrade/9780199205592.001.0001.

MLA (9th ed.) Citation

Howard, Michael. The First World War: A Very Short Introduction. Oxford University Press, 2007. https://doi.org/10.1093/actrade/9780199205592.001.0001.