APA

United States, . (2018). An Act to require the Secretary of Homeland Security to Conduct a Threat and Operational Analysis of Ports of Entry, and for Other Purposes. [Washington, D.C.]: [U.S. Government Publishing Office].

Chicago

United States, . 2018. An Act to require the Secretary of Homeland Security to Conduct a Threat and Operational Analysis of Ports of Entry, and for Other Purposes. [Washington, D.C.]: [U.S. Government Publishing Office].

Harvard

United States, . (2018). An Act to require the Secretary of Homeland Security to Conduct a Threat and Operational Analysis of Ports of Entry, and for Other Purposes. [Washington, D.C.]: [U.S. Government Publishing Office].

MLA

United States, . An Act to require the Secretary of Homeland Security to Conduct a Threat and Operational Analysis of Ports of Entry, and for Other Purposes. [Washington, D.C.]: [U.S. Government Publishing Office]. 2018.