Não informado. (1927). Bulletin du Bureau International d' Education. Bureau International d' Education.
Chicagoスタイル(17版)引用形式Não informado. Bulletin Du Bureau International D' Education. Geneve, Suíça: Bureau International d' Education, 1927.
MLA(8版)引用形式Não informado. Bulletin 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.