APA

United States, . (2019). Examining legislation to address the risks associated with per- and polyfluoroalkyl substances (PFAS): hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Sixteenth Congress, first session, May 22, 2019. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2019. Examining legislation to address the risks associated with per- and polyfluoroalkyl substances (PFAS): hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Sixteenth Congress, first session, May 22, 2019. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2019). Examining legislation to address the risks associated with per- and polyfluoroalkyl substances (PFAS): hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Sixteenth Congress, first session, May 22, 2019. Washington: U.S. Government Publishing Office.

MLA

United States, . Examining legislation to address the risks associated with per- and polyfluoroalkyl substances (PFAS): hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Sixteenth Congress, first session, May 22, 2019. Washington: U.S. Government Publishing Office. 2019.