Ginsburg, H., & Opper, S. (1979). Piaget's theory of intellectual development (2nd ed.). Prentice - hall.
芝加哥风格引文Ginsburg, Herbert, 与 Sylvia Opper. Piaget's Theory of Intellectual Development. 2nd ed. New Jersey: Prentice - hall, 1979.
MLA引文Ginsburg, Herbert, 与 Sylvia Opper. Piaget's Theory of Intellectual Development. 2nd ed. Prentice - hall, 1979.
警告：这些引文格式不一定是100％准确.