APA

United States, . (2017). Making implementation of the National Ambient Air Quality Standards for ground-level ozone attainable: legislative hearing on S. 263 and S. 452 : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, May 23, 2017. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2017. Making implementation of the National Ambient Air Quality Standards for ground-level ozone attainable: legislative hearing on S. 263 and S. 452 : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, May 23, 2017. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2017). Making implementation of the National Ambient Air Quality Standards for ground-level ozone attainable: legislative hearing on S. 263 and S. 452 : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, May 23, 2017. Washington: U.S. Government Publishing Office.

MLA

United States, . Making implementation of the National Ambient Air Quality Standards for ground-level ozone attainable: legislative hearing on S. 263 and S. 452 : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, May 23, 2017. Washington: U.S. Government Publishing Office. 2017.