Cita APA (7a ed.)

Freeman, R. B., & Schettkat, R. (2000). Skill compression, wage differentials and employment: Germany vs the US. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Freeman, Richard Barry, y Ronald Schettkat. Skill Compression, Wage Differentials and Employment: Germany Vs the US. Cambridge, MA: National Bureau of Economic Research, 2000.

Cita MLA (9a ed.)

Freeman, Richard Barry, y Ronald Schettkat. Skill Compression, Wage Differentials and Employment: Germany Vs the US. National Bureau of Economic Research, 2000.