Unesco. (1964). Education for international understanding: Examples and suggestions for class room. Unesco.
Citazione stile Chigago Style (17a edizione)Unesco. Education for International Understanding: Examples and Suggestions for Class Room. Paris: Unesco, 1964.
Citatione MLA (9a ed.)Unesco. Education for International Understanding: Examples and Suggestions for Class Room. Unesco, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.