Delors,Jacques. (1998). Education for the twenty-first century: Issues and prospects. UNESCO.
Chicago ZitierstilDelors,Jacques. Education for the Twenty-first Century: Issues and Prospects. Paris: UNESCO, 1998.
MLA ZitierstilDelors,Jacques. Education for the Twenty-first Century: Issues and Prospects. UNESCO, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.