Tohutoro APA (7th ed.)
Piaget Jean. (1969). The child's conception of physical causality (ed.). Littlefield.
Tohutoru Kātū Chicago (17th ed.)
Piaget Jean. The Child's Conception of Physical Causality. ed. New Jersey: Littlefield, 1969.
Tohutoro MLA (9th ed.)
Piaget Jean. The Child's Conception of Physical Causality. ed. Littlefield, 1969.
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