APA (7th ed.) Citation

United States. Government Accountability Office & United States. Congress. Senate. Committee on Commerce, Science, and Transportation. (2009). Homeland security: DHS's progress and challenges in key areas of maritime, aviation, and cybersecurity : statement before the Committee on Commerce, Science, and Transportation, U.S. Senate. U.S. Govt. Accountability Office.

Chicago Style (17th ed.) Citation

United States. Government Accountability Office and Science United States. Congress. Senate. Committee on Commerce. Homeland Security: DHS's Progress and Challenges in Key Areas of Maritime, Aviation, and Cybersecurity : Statement Before the Committee on Commerce, Science, and Transportation, U.S. Senate. [Washington, D.C.]: U.S. Govt. Accountability Office, 2009.

MLA (9th ed.) Citation

United States. Government Accountability Office and Science United States. Congress. Senate. Committee on Commerce. Homeland Security: DHS's Progress and Challenges in Key Areas of Maritime, Aviation, and Cybersecurity : Statement Before the Committee on Commerce, Science, and Transportation, U.S. Senate. U.S. Govt. Accountability Office, 2009.