Hoffman, S. D., & Seidman, L. S. (1990). The earned income tax credit: Antipoverty effectiveness and labour market effects. W.E. Upjohn Institute for Employment Research.
Citace podle Chicago (17th ed.)Hoffman, Saul D., a Laurence S. Seidman. The Earned Income Tax Credit: Antipoverty Effectiveness and Labour Market Effects. Kalamazoo, Mich: W.E. Upjohn Institute for Employment Research, 1990.
Citace podle MLA (9th ed.)Hoffman, Saul D., a Laurence S. Seidman. The Earned Income Tax Credit: Antipoverty Effectiveness and Labour Market Effects. W.E. Upjohn Institute for Employment Research, 1990.
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