The development of logical thinking in pre-school Zambian children : classification / by M.O. Okonji.
Material type:
TextSeries: H.D.R.U. reports ; no. 23Publication details: Lusaka : Human Development Research Unit, University of Zambia, 1972.Subject(s): DDC classification: - 155.4/23 19
- BF723.R4 O39
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Bibliography: leaf [14]
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