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The changing skill structure of US industries : 1970 - 1978
Lewis, Gary, (1982)
A cross-national comparison of education and earnings
O'Connor, Inge, (1994)
The impact of CETA programs on components of participants' earnings
Dickinson, Katherine P., (1987)
Festschrift in honor of Orley Ashenfelter
Card, David E., (2005)
Handbook of labor economics ; Vol. 3A
Ashenfelter, Orley, (1999)
Handbook of labor economics ; Vol. 3B