Powers, E., & Witmer, H. (1951). An experiment in the prevention of delinquency: The Cambridge-Somerville Youth Study. Columbia University Press.
芝加哥风格引文Powers, Edwin, 与 Helen Witmer. An Experiment in the Prevention of Delinquency: The Cambridge-Somerville Youth Study. New York: Columbia University Press, 1951.
MLA引文Powers, Edwin, 与 Helen Witmer. An Experiment in the Prevention of Delinquency: The Cambridge-Somerville Youth Study. Columbia University Press, 1951.
警告：这些引文格式不一定是100％准确.