United Nations Educational, Scientific and Cultural Organization. (1977). Thinking ahead: Unesco and the challenges of today and tomorrow. Unesco.
Chicagoスタイル(17版)引用形式United Nations Educational, Scientific and Cultural Organization. Thinking Ahead: Unesco and the Challenges of Today and Tomorrow. Paris: Unesco, 1977.
MLA(8版)引用形式United Nations Educational, Scientific and Cultural Organization. Thinking Ahead: Unesco and the Challenges of Today and Tomorrow. Unesco, 1977.
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