APA citiranje

John L. Phillips. (1969). The origins of intellect: Piaget's theory. San Francisco: W.H. Freeman and Co.

Trích dẫn kiểu Chicago

John L. Phillips. The Origins of Intellect: Piaget's Theory. San Francisco: W.H. Freeman and Co, 1969.

MLA citiranje

John L. Phillips. The Origins of Intellect: Piaget's Theory. San Francisco: W.H. Freeman and Co, 1969.

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