Tohutoro APA (7th ed.)
Psacharopoulos, G. (1980). Information, an essential factor in educational planning and policy. Unesco.
Tohutoru Kātū Chicago (17th ed.)
Psacharopoulos, George. Information, an Essential Factor in Educational Planning and Policy. Paris: Unesco, 1980.
Tohutoro MLA (9th ed.)
Psacharopoulos, George. Information, an Essential Factor in Educational Planning and Policy. Unesco, 1980.
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