APA

United States, . (2020). Examining the federal response to 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, March 28, 2019. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2020. Examining the federal response to 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, March 28, 2019. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2020). Examining the federal response to 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, March 28, 2019. Washington: U.S. Government Publishing Office.

MLA

United States, . Examining the federal response to 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, March 28, 2019. Washington: U.S. Government Publishing Office. 2020.