INFORMATION:.. & PSACHAROPOULOS, G. (1980). Information: An essential factor in educational planning and policy. UNESCO.
Chicago-viite (17. p.)INFORMATION:.. ja George PSACHAROPOULOS. Information: An Essential Factor in Educational Planning and Policy. Paris: UNESCO, 1980.
MLA-viite (9. p.)INFORMATION:.. ja George PSACHAROPOULOS. Information: An Essential Factor in Educational Planning and Policy. UNESCO, 1980.
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