Cita APA (7a ed.)

Blanchard, O., & Portugal, P. (1998). What hides behind an unemployment rate: Comparing Portuguese and U.S. unemployment. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Blanchard, Olivier, y Pedro Portugal. What Hides Behind an Unemployment Rate: Comparing Portuguese and U.S. Unemployment. Cambridge, MA: National Bureau of Economic Research, 1998.

Cita MLA (9a ed.)

Blanchard, Olivier, y Pedro Portugal. What Hides Behind an Unemployment Rate: Comparing Portuguese and U.S. Unemployment. National Bureau of Economic Research, 1998.