Cita APA (7a ed.)

Henig, R. B. (1994). The origins of the First World War (2nd ed.). Routledge.

Cita Chicago Style (17a ed.)

Henig, Ruth B. The Origins of the First World War. 2nd ed. London [etc.]: Routledge, 1994.

Cita MLA (9a ed.)

Henig, Ruth B. The Origins of the First World War. 2nd ed. Routledge, 1994.