Não informado. (1955). International Review of Education. Unesco, Institute for Education.
Chicagoスタイル(17版)引用形式Não informado. International Review of Education. Hamburg, Alemanha: Unesco, Institute for Education, 1955.
MLA(8版)引用形式Não informado. International Review of Education. Unesco, Institute for Education, 1955.
警告: この引用は必ずしも正確ではありません.