Dangos 381 - 385 canlyniadau o 385 ar gyfer chwilio '', amser ymholiad: 0.07e Mireinio'r Canlyniadau
  1. 381
    gan Piaget, Jean 1896-
    Cyhoeddwyd 1930
    Llyfr

    The child's conception of physical causality
  2. 382
    gan Piaget, Jean 1896-
    Cyhoeddwyd 1928
    Llyfr

    Judgment and reasoning in the child
  3. 383
    gan Lehman, Harvey C.
    Cyhoeddwyd 1927
    Llyfr

    The psychology of play activities
  4. 384
    gan Gesell, Arnold Lucius 1880-1961
    Cyhoeddwyd 1925
    Llyfr

    The mental growth of the pre-school child a psychological outline of normal development from birth to the sixth year, including a system of developmental diagnosis
  5. 385
    Llyfr

    The first two decades of life
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