Mokyr, J. (1990). The lever of riches: Technological creativity and economic progress. Oxford University Press.
芝加哥风格引文Mokyr, Joel. The Lever of Riches: Technological Creativity and Economic Progress. New York: Oxford University Press, 1990.
MLA引文Mokyr, Joel. The Lever of Riches: Technological Creativity and Economic Progress. Oxford University Press, 1990.
警告：这些引文格式不一定是100％准确.