APA (7th ed.) Citation

Gilbert, M. (2009). The Routledge atlas of American history (6. ed.). Routledge.

Chicago Style (17th ed.) Citation

Gilbert, Martin. The Routledge Atlas of American History. 6. ed. London [u.a.]: Routledge, 2009.

MLA (9th ed.) Citation

Gilbert, Martin. The Routledge Atlas of American History. 6. ed. Routledge, 2009.