Orley Ashenfelter, D. C. (2011). Handbook of Labor Economics. ELSEVIER.
Cita Chicago (17th ed.)Orley Ashenfelter, David Card. Handbook of Labor Economics. ELSEVIER, 2011.
Cita MLA (8th ed.)Orley Ashenfelter, David Card. Handbook of Labor Economics. ELSEVIER, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.