APA

United States, . (2017). Assessing the security of our critical transportation infrastructure: hearing before the Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety and Security of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, second session, December 7, 2016. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2017. Assessing the security of our critical transportation infrastructure: hearing before the Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety and Security of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, second session, December 7, 2016. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2017). Assessing the security of our critical transportation infrastructure: hearing before the Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety and Security of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, second session, December 7, 2016. Washington: U.S. Government Publishing Office.

MLA

United States, . Assessing the security of our critical transportation infrastructure: hearing before the Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety and Security of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, second session, December 7, 2016. Washington: U.S. Government Publishing Office. 2017.