Dyfyniad APA
Piaget, J., & Inhelder, B. (1969). The psychology of the child. Basic books.
Dyfyniad Arddull Chicago
Piaget, Jean, and Barbel Inhelder. The Psychology of the Child. New York: Basic books, 1969.
Dyfyniad MLA
Piaget, Jean, and Barbel Inhelder. The Psychology of the Child. Basic books, 1969.
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