United Nations Educational, Scientific and Cultural Organization. (1977). Thinking ahead: Unesco and the challenges of today and tomorrow. Unesco.
Čikaški stil citiranja (17. izdanje)United Nations Educational, Scientific and Cultural Organization. Thinking Ahead: Unesco and the Challenges of Today and Tomorrow. Paris: Unesco, 1977.
MLA način citiranja (8. izdanje)United Nations Educational, Scientific and Cultural Organization. Thinking Ahead: Unesco and the Challenges of Today and Tomorrow. Unesco, 1977.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.