P121

Peggy Study, Panel P121 Themes: Language Development, Object Exploration, Social Interaction Source: (Lawler); date: 5/18/1980 Title: Text commentary: These clips show ??; Why important ?? P121A1 Standard Objects, 22mb P121A2 Standard Objects, 20mb P121B1 Toys and Talking, 22mb P121B2 Toys and Talking, 14mb P121C Blocks, 12mb P121D1 Letter Desk, 22mb P121D2 Letter Desk, 22mb P121E …

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