unesco http wwwunescoorg culture ich indexphppg text see also conservation restoration rail vehicles georgian group wikipedia wikiproject collections care international day monuments sites references reading ann marie sullivan cultural heritage new media future past j marshall rev intell prop l https repositoryjmlsedu cgi viewcontentcgiarticle context ripl charola elena robert j koestler eds http wwwsilsiedu smithsoniancontributions museumconservation sc recordsinglecfmfilename scmc ''pesticide mitigation museum collections science conservation proceedings mci workshop series'' smithsonian contributions museum conservation washington dc smithsonian institution scholarly press copies volume available free pdf download smithsonian 's
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