Pulaski, M. A. S. (1971). Understanding Piaget: An introduction to children's cognitive development. Harper & Row.
芝加哥风格引文Pulaski, Mary Ann Spencer. Understanding Piaget: An Introduction to Children's Cognitive Development. New York: Harper & Row, 1971.
MLA引文Pulaski, Mary Ann Spencer. Understanding Piaget: An Introduction to Children's Cognitive Development. Harper & Row, 1971.
警告：这些引文格式不一定是100％准确.