Unesco. (1964). Education for international understanding: Examples and suggestions for class room. Unesco.
Cita Chicago (17th ed.)Unesco. Education for International Understanding: Examples and Suggestions for Class Room. Paris: Unesco, 1964.
Cita MLA (9th ed.)Unesco. Education for International Understanding: Examples and Suggestions for Class Room. Unesco, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.