00748nam a2200229Ka 4500007191861MiAaHDL20090821000000.0m d cr bn ---auaua920824s1991 xx f000 0 eng dsdr-ucsd.b31773680EJBEJBCUSd------TD170.C42(OCoLC)26470487The Challenge of the environment[S.l.] :UNDP,199136 p. :ill. ;28 cmMode of access: Internet.Environmental protectionDeveloping countriesUnited Nations Development Programme00719186120090821000000.020120815105106.02026-03-03T18:55:43Z2026-03-03T18:30:02ZSDR-UCSDIII - MILLENIUMloader.pl-001-001BKsdr-ucsd.b31773680uc1SDRUCSDuc1.31822008082281UC.b31773680UCUCSD20260303googleuc1.318220080822811991icbibnon-US bib date1 >= 1931