(1968). Evaluation conference. Paris: OECD.
Čikaški stil citiranjaEvaluation Conference. Paris: OECD, 1968.
MLA način citiranjaEvaluation Conference. Paris: OECD, 1968.
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(1968). Evaluation conference. Paris: OECD.
Čikaški stil citiranjaEvaluation Conference. Paris: OECD, 1968.
MLA način citiranjaEvaluation Conference. Paris: OECD, 1968.