United Nations Educational Scientific and Cultural Organization. (2006). UNESCO open access resource directory. USA: United Nations Educational Scientific and Cultural Organization.
シカゴスタイル引用形United Nations Educational Scientific and Cultural Organization. UNESCO Open Access Resource Directory. USA: United Nations Educational Scientific and Cultural Organization, 2006.
MLA引用形式United Nations Educational Scientific and Cultural Organization. UNESCO Open Access Resource Directory. USA: United Nations Educational Scientific and Cultural Organization, 2006.
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