Ashenfelter, O., & Card, D. (1999). Handbook of labor economics (1a. ed.). Elsevier.
Chicago-čujuhus (17. p.)Ashenfelter, Orley, juo David Card. Handbook of Labor Economics. 1a. ed. Amsterdam: Elsevier, 1999.
MLA-čujuhus (9. p.)Ashenfelter, Orley, juo David Card. Handbook of Labor Economics. 1a. ed. Elsevier, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.