Cita APA

Howard, M. (2007). The First World War: A very short introduction. Oxford ; New York: Oxford University Press.

Citación estilo Chicago

Howard, Michael. The First World War: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2007.

Cita MLA

Howard, Michael. The First World War: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2007.