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1.

図書
図書
1. Immigration, trade, and the labor market
edited by John M. Abowd and Richard B. Freeman
出版情報: Chicago : University of Chicago Press, 1991
シリーズ名: A National Bureau of Economic Research project report
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2.

図書
図書
2. Seasonal agricultural labor markets in the United States
edited by Robert D. Emerson
出版情報: Ames, Iowa : Iowa State University Press, 1984
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