APA

United States, . (2020). Examining state and federal recommendations for enhancing school safety against targeted violence: hearing before the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, July 25, 2019. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2020. Examining state and federal recommendations for enhancing school safety against targeted violence: hearing before the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, July 25, 2019. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2020). Examining state and federal recommendations for enhancing school safety against targeted violence: hearing before the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, July 25, 2019. Washington: U.S. Government Publishing Office.

MLA

United States, . Examining state and federal recommendations for enhancing school safety against targeted violence: hearing before the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Sixteenth Congress, first session, July 25, 2019. Washington: U.S. Government Publishing Office. 2020.