Cita APA (7th ed.)
National Bureau of Economic Research, ebrary, Inc, & Feenstra, R. C. (1997). The effects of U.S. trade protection and promotion policies. University of Chicago Press.
Cita Chicago (17th ed.)
National Bureau of Economic Research, Inc ebrary, i Robert C. Feenstra. The Effects of U.S. Trade Protection and Promotion Policies. Chicago: University of Chicago Press, 1997.
Cita MLA (9th ed.)
National Bureau of Economic Research, et al. The Effects of U.S. Trade Protection and Promotion Policies. University of Chicago Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.