The role of complexity in Piaget`s object permanent tasts

Opalvh, Robert Edward

The role of complexity in Piaget's object permanent tasts [microform] / Robert Edward Opalch - Ann Arbor, Mich. : University Microfilms International, 1979 - 1 microfilm reel : positive ; 35 mm.

Thesis (Ph.D.) - University of California, 1978


Piaget, Jean, 1896

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