Delors,Jacques. (1998). Education for the twenty-first century: Issues and prospects. UNESCO.
Chicago Edition CitationDelors,Jacques. Education for the Twenty-first Century: Issues and Prospects. Paris: UNESCO, 1998.
Cita MLADelors,Jacques. Education for the Twenty-first Century: Issues and Prospects. UNESCO, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.