APA (7th ed.) Citation

Alden, E. H. (2008). The closing of the American border: Terrorism, immigration, and security since 9/11. Harper.

Chicago Style (17th ed.) Citation

Alden, Edward H. The Closing of the American Border: Terrorism, Immigration, and Security Since 9/11. New York, NY: Harper, 2008.

MLA (9th ed.) Citation

Alden, Edward H. The Closing of the American Border: Terrorism, Immigration, and Security Since 9/11. Harper, 2008.