Plant, J. S. (1950). The envelope: A study of the impact of the world upon the child. Commonwealth Fund.
芝加哥风格引文Plant, James Stuart. The Envelope: A Study of the Impact of the World upon the Child. New York: Commonwealth Fund, 1950.
MLA引文Plant, James Stuart. The Envelope: A Study of the Impact of the World upon the Child. Commonwealth Fund, 1950.
警告：这些引文格式不一定是100％准确.