APA (7th ed.) Citation

Gordon, D. L. (2006). Planning twentieth-century capital cities. Routledge.

Chicago Style (17th ed.) Citation

Gordon, David L.A. Planning Twentieth-century Capital Cities. London: Routledge, 2006.

MLA (9th ed.) Citation

Gordon, David L.A. Planning Twentieth-century Capital Cities. Routledge, 2006.