Não informado. (1961). International Journal of Adult and Youth Education. Unesco.
Chicagoスタイル(17版)引用形式Não informado. International Journal of Adult and Youth Education. Paris: Unesco, 1961.
MLA(8版)引用形式Não informado. International Journal of Adult and Youth Education. Unesco, 1961.
警告: この引用は必ずしも正確ではありません.