APA

United States, . (2019). Review of GAO's annual duplication report: hearing before the Subcommittee on Federal Spending Oversight and Emergency Management of the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, May 21, 2019. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2019. Review of GAO's annual duplication report: hearing before the Subcommittee on Federal Spending Oversight and Emergency Management of the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, May 21, 2019. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2019). Review of GAO's annual duplication report: hearing before the Subcommittee on Federal Spending Oversight and Emergency Management of the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, May 21, 2019. Washington: U.S. Government Publishing Office.

MLA

United States, . Review of GAO's annual duplication report: hearing before the Subcommittee on Federal Spending Oversight and Emergency Management of the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, May 21, 2019. Washington: U.S. Government Publishing Office. 2019.