Singer, H. W., Wood, J. B., & Jennings, A. (1987). Food aid: The challenge and the opportunity. Clarendon Press.
芝加哥风格引文Singer, H. W., John B. Wood, 与 Anthony Jennings. Food Aid: The Challenge and the Opportunity. Oxford: Clarendon Press, 1987.
MLA引文Singer, H. W., et al. Food Aid: The Challenge and the Opportunity. Clarendon Press, 1987.
警告：这些引文格式不一定是100％准确.