APA (7th ed.) Citation

Gilbert. (2003). The Routledge atlas of British history (3rd ed.). Routledge.

Chicago Style (17th ed.) Citation

Gilbert. The Routledge Atlas of British History. 3rd ed. London: Routledge, 2003.

MLA (8th ed.) Citation

Gilbert. The Routledge Atlas of British History. 3rd ed. Routledge, 2003.