Matches in Library of Congress for { ?s ?p pt. I. A technique for studying the social, material, and self components of undirected activity.--pt. II. Group norms and individual differences in the social, material, and self activities of preschool children.. }
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- 32008130 description "pt. I. A technique for studying the social, material, and self components of undirected activity.--pt. II. Group norms and individual differences in the social, material, and self activities of preschool children.".
- 32008130 tableOfContents "pt. I. A technique for studying the social, material, and self components of undirected activity.--pt. II. Group norms and individual differences in the social, material, and self activities of preschool children.".