APA

United States, . (2018). Challenges facing Superfund and waste cleanup efforts following natural disasters: hearing before the Subcommittee on Superfund, Waste Management, and Regulatory Oversight of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, December 6, 2017. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2018. Challenges facing Superfund and waste cleanup efforts following natural disasters: hearing before the Subcommittee on Superfund, Waste Management, and Regulatory Oversight of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, December 6, 2017. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2018). Challenges facing Superfund and waste cleanup efforts following natural disasters: hearing before the Subcommittee on Superfund, Waste Management, and Regulatory Oversight of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, December 6, 2017. Washington: U.S. Government Publishing Office.

MLA

United States, . Challenges facing Superfund and waste cleanup efforts following natural disasters: hearing before the Subcommittee on Superfund, Waste Management, and Regulatory Oversight of the Committee on Environment and Public Works, United States Senate, One Hundred Fifteenth Congress, first session, December 6, 2017. Washington: U.S. Government Publishing Office. 2018.