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Health effects of air pollution : hearing before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, first session, April 18, 1989
- "Health effects of air pollution : hearing before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, first session, April 18, 1989"@en
- "Health effects of air pollution hearing before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, first session, April 18, 1989"@en
- "Health effects of air pollution : hearing before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, one hundred first Congress, first session, April 18, 1989"@en