(2009). The science and risk assessment behind EPA's proposed revisions to the particulate matter air quality standards: Hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Ninth Congress, second session, July 19, 2006.
Cita Chicago Style (17a ed.)The Science and Risk Assessment Behind EPA's Proposed Revisions to the Particulate Matter Air Quality Standards: Hearing Before the Committee on Environment and Public Works, United States Senate, One Hundred Ninth Congress, Second Session, July 19, 2006. 2009.
Cita MLA (9a ed.)The Science and Risk Assessment Behind EPA's Proposed Revisions to the Particulate Matter Air Quality Standards: Hearing Before the Committee on Environment and Public Works, United States Senate, One Hundred Ninth Congress, Second Session, July 19, 2006. 2009.