Cita APA (7a ed.)

Lamoreaux, N. R., & Sokoloff, K. L. (1999). Inventive activity and the market for technology in the United States, 1840-1920. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Lamoreaux, Naomi R., y Kenneth Lee Sokoloff. Inventive Activity and the Market for Technology in the United States, 1840-1920. Cambridge, MA: National Bureau of Economic Research, 1999.

Cita MLA (9a ed.)

Lamoreaux, Naomi R., y Kenneth Lee Sokoloff. Inventive Activity and the Market for Technology in the United States, 1840-1920. National Bureau of Economic Research, 1999.