Não informado. (1951). Civilisations. Institut International des Civilisations Differentes.
Chicagoスタイル(17版)引用形式Não informado. Civilisations. Bruxelles: Institut International des Civilisations Differentes, 1951.
MLA(8版)引用形式Não informado. Civilisations. Institut International des Civilisations Differentes, 1951.
警告: この引用は必ずしも正確ではありません.