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  1. 1

    Look at kids. 由 Berg, Leila

    出版 1972
    图书

    Look at kids.
  2. 2

    Four years old in an urban community

    出版 1968
    图书

    Four years old in an urban community
  3. 3

    Patterns of infant care in an urban community 由 Newson, John 1925

    出版 1963
    图书

    Patterns of infant care in an urban community

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