ID:DA18709710
Mills, Queenie Beatrice
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script prepared by Robert Karplus and Celia Stendler . interviews by Celia Stendler Lavatelli and Queenie B. Mills ; script consultant, Leo S. Lavatelli
Davidson Films [n.d.] Special projects . Classic Piaget collection ; v. 1 . Piaget's developmental theory
Videorecording (Videodisc)
Available at 9 libraries