Shepperd, J. A., & Taylor, K. M. (2001). Social loafing and expectancy-value theory.
芝加哥风格引文Shepperd, James A., 与 Kevin M. Taylor. Social Loafing and Expectancy-value Theory. 2001.
MLA引文Shepperd, James A., 与 Kevin M. Taylor. Social Loafing and Expectancy-value Theory. 2001.
警告：这些引文格式不一定是100％准确.