Williamson, J. B. (1975). Strategies against poverty in America. Schenkman Pub.
芝加哥风格引文Williamson, John B. Strategies Against Poverty in America. Cambridge, MA: Schenkman Pub, 1975.
MLA引文Williamson, John B. Strategies Against Poverty in America. Schenkman Pub, 1975.
警告：这些引文格式不一定是100％准确.