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
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
