Não informado. (1955). International Review of Education. Unesco, Institute for Education.
Chicago-Zitierstil (17. Ausg.)Não informado. International Review of Education. Hamburg, Alemanha: Unesco, Institute for Education, 1955.
MLA-Zitierstil (8. Ausg.)Não informado. International Review of Education. Unesco, Institute for Education, 1955.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.