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The effects of immigrants on African-American earnings : a job-level analysis of the New York City Labor Market : 1979 - 1989
Howell, David R., (1997)
The effects of immigrants on African-American earnings : a jobs-level analysis of the New York City labor market, 1979 - 89
Class, productivity, and the ghetto : a study of labor market stratification
Gordon, David Michael, (1971)