APA (7th ed.) Zitazioa

Clean Air Act Amendments of 1989: Hearing before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, first session ..

Chicago Style (17th ed.) Zitazioa

Clean Air Act Amendments of 1989: Hearing Before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, First Session ..

MLA (9th ed.) Zitazioa

Clean Air Act Amendments of 1989: Hearing Before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, One Hundred First Congress, First Session ..