Ashenfelter, O., & Hallock, K. F. (1997). Economic institutions and the demand of labor: The collected essays of Orley Ashenfelter, volume three. Edward Elgar.
Cita Chicago (17th ed.)Ashenfelter, Orley, i Kevin F. Hallock. Economic Institutions and the Demand of Labor: The Collected Essays of Orley Ashenfelter, Volume Three. Cheltenham, U.K: Edward Elgar, 1997.
Cita MLA (9th ed.)Ashenfelter, Orley, i Kevin F. Hallock. Economic Institutions and the Demand of Labor: The Collected Essays of Orley Ashenfelter, Volume Three. Edward Elgar, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.