(1973). Bibliography of publications issued by Unesco: Or under its auspices: the first twenty-five years. Unesco.
Chicago-Zitierstil (17. Ausg.)Bibliography of Publications Issued by Unesco: Or Under Its Auspices: The First Twenty-five Years. Paris: Unesco, 1973.
MLA-Zitierstil (9. Ausg.)Bibliography of Publications Issued by Unesco: Or Under Its Auspices: The First Twenty-five Years. Unesco, 1973.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.