P129
Peggy Study, Panel P129 Themes: Language Development, Object Exploration, Social Interactions Source: (Lawler); date: 7/13/1980 Title: Text commentary: P129A1 Letters Desk, 17mb P129A2 Letters Desk, 17mb P129B1 Standard Objects, 21mb P129B2 Standard Objects, 23mb P129B3 Standard Objects, 20mb P129C1 Blocks, 22mb P129C2 Blocks, 23mb P129D Counting, Reading, 8mb