Postan, M. M. (1972). The medieval economy and society: An economic history of Britain in the Middle Ages. Penguin Books.
芝加哥风格引文Postan, M. M. The Medieval Economy and Society: An Economic History of Britain in the Middle Ages. London: Penguin Books, 1972.
MLA引文Postan, M. M. The Medieval Economy and Society: An Economic History of Britain in the Middle Ages. Penguin Books, 1972.
警告：这些引文格式不一定是100％准确.