United States. Congress. House. Committee on Science, Space, and Technology (2011- ). Subcommittee on Investigations and Oversight. (2022). COVID-19 variants and evolving research needs: Hearing before the Subcommittee on Investigations and Oversight of the Committee on Science, Space, and Technology, House of Representatives, One Hundred Seventeenth Congress, first session, May 12, 2021. U.S. Government Publishing Office.
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Science, Space, and Technology (2011- ). Subcommittee on Investigations and Oversight. COVID-19 Variants and Evolving Research Needs: Hearing Before the Subcommittee on Investigations and Oversight of the Committee on Science, Space, and Technology, House of Representatives, One Hundred Seventeenth Congress, First Session, May 12, 2021. Washington: U.S. Government Publishing Office, 2022.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Science, Space, and Technology (2011- ). Subcommittee on Investigations and Oversight. COVID-19 Variants and Evolving Research Needs: Hearing Before the Subcommittee on Investigations and Oversight of the Committee on Science, Space, and Technology, House of Representatives, One Hundred Seventeenth Congress, First Session, May 12, 2021. U.S. Government Publishing Office, 2022.