Card, D. (2000). Estimating the return to schooling: Progress on some persistent econometric problems. National Bureau of Economic Research.
Citace podle Chicago (17th ed.)Card, David. Estimating the Return to Schooling: Progress on Some Persistent Econometric Problems. Cambridge: National Bureau of Economic Research, 2000.
Citace podle MLA (9th ed.)Card, David. Estimating the Return to Schooling: Progress on Some Persistent Econometric Problems. National Bureau of Economic Research, 2000.
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