Ashenfelter, O., & Rouse, C. (1997). Income, schooling, and ability: Evidence from a new sample of identical twins. National Bureau of Economic Research.
Citazione stile Chigago Style (17a edizione)Ashenfelter, Orley, e Cecilia Rouse. Income, Schooling, and Ability: Evidence from a New Sample of Identical Twins. Cambridge: National Bureau of Economic Research, 1997.
Citatione MLA (9a ed.)Ashenfelter, Orley, e Cecilia Rouse. Income, Schooling, and Ability: Evidence from a New Sample of Identical Twins. National Bureau of Economic Research, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.