Blackburn, M. L., Bloom, D. E., & Freeman, R. B. (1991). Changes in earnings differentials in the 1980s: Concordance, convergence, causes, and consequences. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Blackburn, MacKinley L., David E. Bloom, und Richard B. Freeman. Changes in Earnings Differentials in the 1980s: Concordance, Convergence, Causes, and Consequences. Cambridge, Mass: National Bureau of Economic Research, 1991.
MLA-Zitierstil (9. Ausg.)Blackburn, MacKinley L., et al. Changes in Earnings Differentials in the 1980s: Concordance, Convergence, Causes, and Consequences. National Bureau of Economic Research, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.