Unesco. (1955). Bibliographical services throughout the world. Unesco.
Chicagoスタイル(17版)引用形式Unesco. Bibliographical Services Throughout the World. Paris: Unesco, 1955.
MLA(9版)引用形式Unesco. Bibliographical Services Throughout the World. Unesco, 1955.
警告: この引用は必ずしも正確ではありません.