Beuli, U. K. (1982). Concept formation in children: Eco-cultural context. National Publishing House.
Čikaški stil citiranjaBeuli, Updesh K. Concept Formation in Children: Eco-cultural Context. New Delhi: National Publishing House, 1982.
MLA način citiranjaBeuli, Updesh K. Concept Formation in Children: Eco-cultural Context. National Publishing House, 1982.
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