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Trade and wages : what are the questions?
Deardorff, Alan V., (1993)
Using geographic variation in college proximity to estimate the return to schooling
Card, David E., (1993)
Updated notes on the interindustry wage structure
Allen, Steven G., (1994)
United States Department of Labor - Bureau of Labor Statistics - Charting International Labor Comparisons (2012 Edition)
(2003)
BLS publications, 1972-77
Epstein, Rosalie, (1978)
Labor law and practice in Belgium
Reynolds, Carol A., (1970)