00785nam0-22002651i-450-990003069160403321000306916FED01000306916(Aleph)000306916FED0100030691620000920d--------km-y0itay50------baitaITEnvironmental Impacts of a North American Free Trade AgreementGene M. Grossman, Alan B. KruegerWorking paper seriesNBER3914Grossman,Gene M.<1955- >Krueger,Alan B.ITUNINARICAUNIMARCBK990003069160403321PaperSESSESEnvironmental Impacts of a North American Free Trade Agreement464986UNINAING01