United States. Congress. Senate. Committee on Environment and Public Works. (2015). Challenges and Implications of EPA's Proposed National Ambient Air Quality Standard for Ground-Level Ozone and Legislative Hearing on S. 638, S. 751, and S. 640. ProQuest.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Environment and Public Works. Challenges and Implications of EPA's Proposed National Ambient Air Quality Standard for Ground-Level Ozone and Legislative Hearing on S. 638, S. 751, and S. 640. Bethesda, Md.: ProQuest, 2015.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Environment and Public Works. Challenges and Implications of EPA's Proposed National Ambient Air Quality Standard for Ground-Level Ozone and Legislative Hearing on S. 638, S. 751, and S. 640. ProQuest, 2015.