Jenkins, W. O., Jr. (2004). Homeland Security Advisory System: Preliminary observations regarding threat level increases from yellow to orange. U.S. General Accounting Office.
Chicago Style (17th ed.) CitationJenkins, William O., Jr. Homeland Security Advisory System: Preliminary Observations Regarding Threat Level Increases from Yellow to Orange. Washington, DC: U.S. General Accounting Office, 2004.
MLA (9th ed.) CitationJenkins, William O., Jr. Homeland Security Advisory System: Preliminary Observations Regarding Threat Level Increases from Yellow to Orange. U.S. General Accounting Office, 2004.
Warning: These citations may not always be 100% accurate.