Piaget, J. (1955). The construction of reality in the child. Routledge & K. Paul.
Lua i Stíl Chicago (17ú heag.)Piaget, Jean. The Construction of Reality in the Child. London: Routledge & K. Paul, 1955.
Lua MLA (9ú heag.)Piaget, Jean. The Construction of Reality in the Child. Routledge & K. Paul, 1955.
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