The school readiness project / by Wincenty Okon and Barbara Wilgocka-Okon.
Material type:
TextSeries: Experiments and innovations in education ; no. 2Publication details: [Paris] : United Nations Educational, Scientific and Cultural Organization: IBE, [1973]ISBN: - 9231010654
- 372.2
- LB1132 .O54
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Bibliography: p. 29-30.
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