Tohutoro APA (7th ed.)

Mokyr, J. (1990). The lever of riches: Technological creativity and economic progress. Oxford University Press.

Tohutoru Kātū Chicago (17th ed.)

Mokyr, Joel. The Lever of Riches: Technological Creativity and Economic Progress. New York: Oxford University Press, 1990.

Tohutoro MLA (9th ed.)

Mokyr, Joel. The Lever of Riches: Technological Creativity and Economic Progress. Oxford University Press, 1990.