Cita APA (7a ed.)

O'Hanlon, M. E. (2003). Protecting the American Homeland: One Year On ([Updated] with a new preface.). Brookings Institution Press.

Cita Chicago Style (17a ed.)

O'Hanlon, Michael E. Protecting the American Homeland: One Year On. [Updated] with a new preface. Washington, D.C.: Brookings Institution Press, 2003.

Cita MLA (8a ed.)

O'Hanlon, Michael E. Protecting the American Homeland: One Year On. [Updated] with a new preface. Brookings Institution Press, 2003.