APA

United States, . (2018). Cooperative federalism under the Clean Air Act: state perspectives : 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, second session, April 10, 2018. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2018. Cooperative federalism under the Clean Air Act: state perspectives : 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, second session, April 10, 2018. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2018). Cooperative federalism under the Clean Air Act: state perspectives : 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, second session, April 10, 2018. Washington: U.S. Government Publishing Office.

MLA

United States, . Cooperative federalism under the Clean Air Act: state perspectives : 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, second session, April 10, 2018. Washington: U.S. Government Publishing Office. 2018.