Gilbert, M. (1994). The Routlege atlas of the first world war (2nd ed.). Routledge.
Cita Chicago (17th ed.)Gilbert, Martin. The Routlege Atlas of the First World War. 2nd ed. London: Routledge, 1994.
Cita MLA (9th ed.)Gilbert, Martin. The Routlege Atlas of the First World War. 2nd ed. Routledge, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.