APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, & O'Hanlon, M. E. (2003). Protecting the American homeland: One year on ([Updated] with a new preface.). Brookings Institution Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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