Heckman, J. J., & Vytlacil, E. (2000). Identifying the role of cognitive ability in explaining the level of and change in the return to schooling. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Heckman, James J., und Edward Vytlacil. Identifying the Role of Cognitive Ability in Explaining the Level of and Change in the Return to Schooling. Cambridge, Mass: National Bureau of Economic Research, 2000.
MLA-Zitierstil (9. Ausg.)Heckman, James J., und Edward Vytlacil. Identifying the Role of Cognitive Ability in Explaining the Level of and Change in the Return to Schooling. National Bureau of Economic Research, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.