Cita APA (7a ed.)

Bernard, A. B., & Jensen, J. B. (1999). Exporting and productivity. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Bernard, Andrew B., y J. Bradford Jensen. Exporting and Productivity. Cambridge, MA: National Bureau of Economic Research, 1999.

Cita MLA (9a ed.)

Bernard, Andrew B., y J. Bradford Jensen. Exporting and Productivity. National Bureau of Economic Research, 1999.