Pollard, S. (1990). Wealth and poverty: An economic history of the twentieth century. Oxford University Press.
芝加哥风格引文Pollard, Sidney. Wealth and Poverty: An Economic History of the Twentieth Century. Oxford: Oxford University Press, 1990.
MLA引文Pollard, Sidney. Wealth and Poverty: An Economic History of the Twentieth Century. Oxford University Press, 1990.
警告：这些引文格式不一定是100％准确.