Não informado. (1927). Publications du Bureau International d'Education. Bureau International d' Education.
Chicagoスタイル(17版)引用形式Não informado. Publications Du Bureau International D'Education. Geneva, Suíça: Bureau International d' Education, 1927.
MLA(8版)引用形式Não informado. Publications Du Bureau International D'Education. Bureau International d' Education, 1927.
警告: この引用は必ずしも正確ではありません.