(1969). Education for international Understanding: A survey of twelve seminars organised jointly. Unesco.
Cita Chicago (17th ed.)Education for International Understanding: A Survey of Twelve Seminars Organised Jointly. Hamburg: Unesco, 1969.
Cita MLA (9th ed.)Education for International Understanding: A Survey of Twelve Seminars Organised Jointly. Unesco, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.