Halperin, E. P. (1971). Imitation in children. University of Chicago.
芝加哥风格引文Halperin, Elaine P. Imitation in Children. London: University of Chicago, 1971.
MLA引文Halperin, Elaine P. Imitation in Children. University of Chicago, 1971.
警告：这些引文格式不一定是100％准确.