APA

United States, . (2015). Passenger rail safety: accident prevention and on-going efforts to implement train control technology : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, first session, June 10, 2015. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2015. Passenger rail safety: accident prevention and on-going efforts to implement train control technology : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, first session, June 10, 2015. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2015). Passenger rail safety: accident prevention and on-going efforts to implement train control technology : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, first session, June 10, 2015. Washington: U.S. Government Publishing Office.

MLA

United States, . Passenger rail safety: accident prevention and on-going efforts to implement train control technology : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourteenth Congress, first session, June 10, 2015. Washington: U.S. Government Publishing Office. 2015.