Schooling, intelligence, and income in America : cracks in the bell curve

Manylion Llyfryddiaeth
Prif Awdur:	Ashenfelter, Orley
Awduron Eraill:	Rouse, Cecilia
Fformat:	Llyfr
Iaith:	Saesneg
Cyhoeddwyd:	Cambridge National Bureau of Economic Research 1999.
Cyfres:	NBER working paper series no.6902
Pynciau:	Wages > Effect of education on > United States. Human capital > United States. Education > Economic aspects > United States.